Questions on Algebra: Quadratic Equation answered by real tutors!

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Question 350140: (5z-15)/49�(z-3)/35z
simplify answer, use integers or fractions
Click here to see answer by Fombitz(32388)

Question 350141: (p^3-2p)/(p^2-81)
Click here to see answer by Fombitz(32388)

Question 350143: 3x^2-5x+8 use x=-3
I tried this question
3(-3)^2-5(-3)+8
3(9)+15+8
27+15+8=50
is 50 the answer?
Click here to see answer by Fombitz(32388)

Question 350047: please solve this because i need it: ((x-1)/(x))^2-(x-1)/(x)-2=0. Thanks!
Click here to see answer by Fombitz(32388)

Question 350159: in a right triangle find the length of the side not given b=2 c=squareroot of 13
Click here to see answer by edjones(8007)

Question 350196: i have been working on this problem for an hour and cannot seem to figure it out. Thank you ∛(y^10 )�∛(y^11 ) multipy and simplify
Click here to see answer by Fombitz(32388)

Question 350163: factor completely 3x^5-12x^4+21x^3
Click here to see answer by CharlesG2(834)

Question 350105: Triangle ABC is isosceles. AB = x and BC = 2x-4
a) find two possible values for x if the perimeter of triangle ABC is 32
b)how many possible values are there for x if the perimeter of triangle ABC is 12
Click here to see answer by Fombitz(32388)

Question 350272: please help me solve the equation
3(4x+2)+5x=30-x
Click here to see answer by edjones(8007)

Question 350272: please help me solve the equation
3(4x+2)+5x=30-x
Click here to see answer by stanbon(75887)

Question 350311: Please show your work in order for me to understand problems, thank you...
1. x^2 + 11x + 24=0 Solve and show work
2. 3x^2 + 8x + 5 Factor and show work
3. (15 (21/(5 (7 Simplify radical notation
Thanks again.
Click here to see answer by edjones(8007)

Question 350353: A 16 by 20-inch mounting board is used to mount a photograph. How wide a uniform border is needed if the photograph occupies 3/5 of the area of the mounting board?
Click here to see answer by solver91311(24713)

Question 350361: complete the square for x2-14x+? to form a perfect square trinomial.
Click here to see answer by jim_thompson5910(35256)

Question 350361: complete the square for x2-14x+? to form a perfect square trinomial.
Click here to see answer by solver91311(24713)

Question 350354: The base of a triangle is 2 feet more than twice its altitude. If the area is 12 square feet, find the dimensions.
Click here to see answer by checkley77(12844)

Question 350394: x^1/8 times y^1/5 times z^1/3
use rational exponents to write as a sing radical expression.
I understand you multiply 8x6x3 which is 120 however where do the letters come into play? would it be 120square root of xyz or would the numbers have to be in the square root as well?
Click here to see answer by jim_thompson5910(35256)

Question 350460: remove factors of 1
(n^2-1)/(n+1)^2
I believe the answer would be n-1,n+1 is this correct or am I overseeing something?
Click here to see answer by mananth(16946)

Question 350452: 18a^2+24ad+8d^2
factor the equation

Click here to see answer by kicker1238(2)

Question 350536: area of a square that's sides are 6.3 cm in length
Click here to see answer by 30041131bnm(1)

Question 350650: What is the equation of a parabola whose's vertex is at at (5,7) and passes though the point (8,-2)
Click here to see answer by Fombitz(32388)

Question 350627: two facing pages product of page # 210 what are page numbers?

Click here to see answer by unlockmath(1688)

Question 350711: write a quadratic equation in the variable x having the given numbers as solutions. Type the equation in standard form, ax^2+bx+c=0. The solutions are -5,2
Click here to see answer by ankor@dixie-net.com(22740)

Question 350721: -2x squared + 5x + 3 = 0

Click here to see answer by ewatrrr(24785)

Question 350752: Can you please explain to me two ways in which quadratic and absolute value graphs are similar and two ways in which they are different.
Click here to see answer by jim_thompson5910(35256)

Question 350610: the length of a swimming pool is three times its wide less five meters,if it its volume is 304 cubic meters,its deep has 2 meters,determine the length and its wide. please, I need to find the solution using on Quadratic Formula.
please, answer to my e-mail : samuelpinedasarabia@gmail.com
Click here to see answer by mananth(16946)

Question 350830: how do you figure out the height of the max/min when drawin a quadratic parobola???
for example (x+5)(x-3)
Click here to see answer by Fombitz(32388)

Question 350834: solve for x
4x(x-8)-5x(x-7)=-4
Click here to see answer by checkley77(12844)

Question 350877: If the discriminant in the quadratic formula is a perfect square, then the quadratic equation will have ___________ solution(s).
Click here to see answer by Theo(13342)

Question 350876: Please help solve by completing the square...
x^2 + 1/2x = 1
Click here to see answer by Theo(13342)

Question 350825: how do you figure out the height of the max/min when drawin a quadratic parobola???

Click here to see answer by Theo(13342)

Question 350939: I have tried completing the square and quad formula for the following question and I am stuck..
y=2xsquared-8
I have to graph this but do not know how?..
Obviously y=-8 but how do I find x?
Thanks for any input since I seem to be having a brain fart...
Click here to see answer by jim_thompson5910(35256)

Question 350975: A plane took 4 h to fly 2200 km from saskatoon to toronto with a tail wind. Thereturn trip, with a head wind, took 5 h. Find the speed of the plane in still air and the wind speed.
Click here to see answer by dabanfield@earthlink.net(8)

Question 351063: what are the solutions of the equation x^2-12x+32=0
Click here to see answer by nerdybill(7384)

Question 351076: Can all quadratic equations be solved using factoring? If no, show a counterexample.
Click here to see answer by edjones(8007)

Question 351077: What is wrong with the solution of the student?
x(x+3) = 9
x = 9 or x+3 = 9
x = 6
So the roots are 9 and 6.
Click here to see answer by mananth(16946)

Question 351075: Why is it important to write the quadratic equation in standard form before factoring?
Click here to see answer by merlanugas_11(2)

Question 351088: A page for a journal contains 70 square inches of type written words. The height of a page is twice the width. If the Margin around the type is to be 2 inches uniformly, what are the dimensions of a page?
Click here to see answer by mananth(16946)

Question 351110: planting grass on the rectangular plot of land and also building a fence around the edge of the plot . The plot is 45 yards long and 30 yards wide . how much area do we need to cover with grass seed ? how many feet of fencing do we need ?
Click here to see answer by nerdybill(7384)

Question 351208: factor r^2+14r+49
Click here to see answer by rfer(16322)

Question 351279: How do you write an equation when you are given the points?
Click here to see answer by solver91311(24713)

Question 351499: 1.a piece of wire 44cm long is cut into two parts and each part is bent to form a square.if the total area of two square is 65sq.cm.find the perimeter of two square.
2.a particle is projeced from ground level so that its height above the groungd afer t seonds is given by 20t-5t^2m. after how any seconds is it 15m above the ground?can you explain briefly why there are two possible answers
Click here to see answer by mananth(16946)

Question 351395: 1. g(x)=3x^2+24x+36
2. g(x)=7x^2-14x-7
3. g(x)=9x^2+36x+28
4. g(x)=8x^2-48+47
Click here to see answer by Fombitz(32388)

Question 351378: what order do i use to solve this
w=91.4-(91.4+5)(0.478+0.301 sqrt 35-0.02*35
Click here to see answer by Fombitz(32388)

Question 351760: The length of a rectangle has the double of its wide more four meters. If the total area is 336 m2 , What are its measures? please, would you like help me? .

Click here to see answer by stanbon(75887)

Older solutions: 1..45, 46..90, 91..135, 136..180, 181..225, 226..270, 271..315, 316..360, 361..405, 406..450, 451..495, 496..540, 541..585, 586..630, 631..675, 676..720, 721..765, 766..810, 811..855, 856..900, 901..945, 946..990, 991..1035, 1036..1080, 1081..1125, 1126..1170, 1171..1215, 1216..1260, 1261..1305, 1306..1350, 1351..1395, 1396..1440, 1441..1485, 1486..1530, 1531..1575, 1576..1620, 1621..1665, 1666..1710, 1711..1755, 1756..1800, 1801..1845, 1846..1890, 1891..1935, 1936..1980, 1981..2025, 2026..2070, 2071..2115, 2116..2160, 2161..2205, 2206..2250, 2251..2295, 2296..2340, 2341..2385, 2386..2430, 2431..2475, 2476..2520, 2521..2565, 2566..2610, 2611..2655, 2656..2700, 2701..2745, 2746..2790, 2791..2835, 2836..2880, 2881..2925, 2926..2970, 2971..3015, 3016..3060, 3061..3105, 3106..3150, 3151..3195, 3196..3240, 3241..3285, 3286..3330, 3331..3375, 3376..3420, 3421..3465, 3466..3510, 3511..3555, 3556..3600, 3601..3645, 3646..3690, 3691..3735, 3736..3780, 3781..3825, 3826..3870, 3871..3915, 3916..3960, 3961..4005, 4006..4050, 4051..4095, 4096..4140, 4141..4185, 4186..4230, 4231..4275, 4276..4320, 4321..4365, 4366..4410, 4411..4455, 4456..4500, 4501..4545, 4546..4590, 4591..4635, 4636..4680, 4681..4725, 4726..4770, 4771..4815, 4816..4860, 4861..4905, 4906..4950, 4951..4995, 4996..5040, 5041..5085, 5086..5130, 5131..5175, 5176..5220, 5221..5265, 5266..5310, 5311..5355, 5356..5400, 5401..5445, 5446..5490, 5491..5535, 5536..5580, 5581..5625, 5626..5670, 5671..5715, 5716..5760, 5761..5805, 5806..5850, 5851..5895, 5896..5940, 5941..5985, 5986..6030, 6031..6075, 6076..6120, 6121..6165, 6166..6210, 6211..6255, 6256..6300, 6301..6345, 6346..6390, 6391..6435, 6436..6480, 6481..6525, 6526..6570, 6571..6615, 6616..6660, 6661..6705, 6706..6750, 6751..6795, 6796..6840, 6841..6885, 6886..6930, 6931..6975, 6976..7020, 7021..7065, 7066..7110, 7111..7155, 7156..7200, 7201..7245, 7246..7290, 7291..7335, 7336..7380, 7381..7425, 7426..7470, 7471..7515, 7516..7560, 7561..7605, 7606..7650, 7651..7695, 7696..7740, 7741..7785, 7786..7830, 7831..7875, 7876..7920, 7921..7965, 7966..8010, 8011..8055, 8056..8100, 8101..8145, 8146..8190, 8191..8235, 8236..8280, 8281..8325, 8326..8370, 8371..8415, 8416..8460, 8461..8505, 8506..8550, 8551..8595, 8596..8640, 8641..8685, 8686..8730, 8731..8775, 8776..8820, 8821..8865, 8866..8910, 8911..8955, 8956..9000, 9001..9045, 9046..9090, 9091..9135, 9136..9180, 9181..9225, 9226..9270, 9271..9315, 9316..9360, 9361..9405, 9406..9450, 9451..9495, 9496..9540, 9541..9585, 9586..9630, 9631..9675, 9676..9720, 9721..9765, 9766..9810, 9811..9855, 9856..9900, 9901..9945, 9946..9990, 9991..10035, 10036..10080, 10081..10125, 10126..10170, 10171..10215, 10216..10260, 10261..10305, 10306..10350, 10351..10395, 10396..10440, 10441..10485, 10486..10530, 10531..10575, 10576..10620, 10621..10665, 10666..10710, 10711..10755, 10756..10800, 10801..10845, 10846..10890, 10891..10935, 10936..10980, 10981..11025, 11026..11070, 11071..11115, 11116..11160, 11161..11205, 11206..11250, 11251..11295, 11296..11340, 11341..11385, 11386..11430, 11431..11475, 11476..11520, 11521..11565, 11566..11610, 11611..11655, 11656..11700, 11701..11745, 11746..11790, 11791..11835, 11836..11880, 11881..11925, 11926..11970, 11971..12015, 12016..12060, 12061..12105, 12106..12150, 12151..12195, 12196..12240, 12241..12285, 12286..12330, 12331..12375, 12376..12420, 12421..12465, 12466..12510, 12511..12555, 12556..12600, 12601..12645, 12646..12690, 12691..12735, 12736..12780, 12781..12825, 12826..12870, 12871..12915, 12916..12960, 12961..13005, 13006..13050, 13051..13095, 13096..13140, 13141..13185, 13186..13230, 13231..13275, 13276..13320, 13321..13365, 13366..13410, 13411..13455, 13456..13500, 13501..13545, 13546..13590, 13591..13635, 13636..13680, 13681..13725, 13726..13770, 13771..13815, 13816..13860, 13861..13905, 13906..13950, 13951..13995, 13996..14040, 14041..14085, 14086..14130, 14131..14175, 14176..14220, 14221..14265, 14266..14310, 14311..14355, 14356..14400, 14401..14445, 14446..14490, 14491..14535, 14536..14580, 14581..14625, 14626..14670, 14671..14715, 14716..14760, 14761..14805, 14806..14850, 14851..14895, 14896..14940, 14941..14985, 14986..15030, 15031..15075, 15076..15120, 15121..15165, 15166..15210, 15211..15255, 15256..15300, 15301..15345, 15346..15390, 15391..15435, 15436..15480, 15481..15525, 15526..15570, 15571..15615, 15616..15660, 15661..15705, 15706..15750, 15751..15795, 15796..15840, 15841..15885, 15886..15930, 15931..15975, 15976..16020, 16021..16065, 16066..16110, 16111..16155, 16156..16200, 16201..16245, 16246..16290, 16291..16335, 16336..16380, 16381..16425, 16426..16470, 16471..16515, 16516..16560, 16561..16605, 16606..16650, 16651..16695, 16696..16740, 16741..16785, 16786..16830, 16831..16875, 16876..16920, 16921..16965, 16966..17010, 17011..17055, 17056..17100, 17101..17145, 17146..17190, 17191..17235, 17236..17280, 17281..17325, 17326..17370, 17371..17415, 17416..17460, 17461..17505, 17506..17550, 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20746..20790, 20791..20835, 20836..20880, 20881..20925, 20926..20970, 20971..21015, 21016..21060, 21061..21105, 21106..21150, 21151..21195, 21196..21240, 21241..21285, 21286..21330, 21331..21375, 21376..21420, 21421..21465, 21466..21510, 21511..21555, 21556..21600, 21601..21645, 21646..21690, 21691..21735, 21736..21780, 21781..21825, 21826..21870, 21871..21915, 21916..21960, 21961..22005, 22006..22050, 22051..22095, 22096..22140, 22141..22185, 22186..22230, 22231..22275, 22276..22320, 22321..22365, 22366..22410, 22411..22455, 22456..22500, 22501..22545, 22546..22590, 22591..22635, 22636..22680, 22681..22725, 22726..22770, 22771..22815, 22816..22860, 22861..22905, 22906..22950, 22951..22995, 22996..23040, 23041..23085, 23086..23130, 23131..23175, 23176..23220, 23221..23265, 23266..23310, 23311..23355, 23356..23400, 23401..23445, 23446..23490, 23491..23535, 23536..23580, 23581..23625, 23626..23670, 23671..23715, 23716..23760, 23761..23805, 23806..23850, 23851..23895, 23896..23940, 23941..23985, 23986..24030, 24031..24075, 24076..24120, 24121..24165, 24166..24210, 24211..24255, 24256..24300, 24301..24345, 24346..24390, 24391..24435, 24436..24480, 24481..24525, 24526..24570, 24571..24615, 24616..24660, 24661..24705, 24706..24750, 24751..24795, 24796..24840, 24841..24885, 24886..24930, 24931..24975, 24976..25020, 25021..25065, 25066..25110, 25111..25155, 25156..25200, 25201..25245, 25246..25290, 25291..25335, 25336..25380, 25381..25425, 25426..25470, 25471..25515, 25516..25560, 25561..25605, 25606..25650, 25651..25695, 25696..25740, 25741..25785, 25786..25830, 25831..25875, 25876..25920, 25921..25965, 25966..26010, 26011..26055, 26056..26100, 26101..26145, 26146..26190, 26191..26235, 26236..26280, 26281..26325, 26326..26370, 26371..26415, 26416..26460, 26461..26505, 26506..26550, 26551..26595, 26596..26640, 26641..26685, 26686..26730, 26731..26775, 26776..26820, 26821..26865, 26866..26910, 26911..26955, 26956..27000, 27001..27045, 27046..27090, 27091..27135, 27136..27180, 27181..27225, 27226..27270, 27271..27315, 27316..27360, 27361..27405, 27406..27450, 27451..27495, 27496..27540, 27541..27585, 27586..27630, 27631..27675, 27676..27720, 27721..27765, 27766..27810, 27811..27855, 27856..27900, 27901..27945, 27946..27990, 27991..28035, 28036..28080, 28081..28125, 28126..28170, 28171..28215, 28216..28260, 28261..28305, 28306..28350, 28351..28395, 28396..28440, 28441..28485, 28486..28530, 28531..28575, 28576..28620, 28621..28665, 28666..28710, 28711..28755, 28756..28800, 28801..28845, 28846..28890, 28891..28935, 28936..28980, 28981..29025, 29026..29070, 29071..29115, 29116..29160, 29161..29205, 29206..29250, 29251..29295, 29296..29340, 29341..29385, 29386..29430, 29431..29475, 29476..29520, 29521..29565, 29566..29610, 29611..29655, 29656..29700, 29701..29745, 29746..29790, 29791..29835, 29836..29880, 29881..29925, 29926..29970, 29971..30015, 30016..30060, 30061..30105, 30106..30150, 30151..30195, 30196..30240