Questions on Algebra: Quadratic Equation answered by real tutors!

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Tutors Answer Your Questions about Quadratic Equations (FREE)


Question 363963: Without graphing, tell how many x-intercepts the function has.
+y=-4x%5E2%2B3x-3+

Click here to see answer by Sphinx pinastri(17) About Me 

Question 363960:
Which describes the nature of the roots of the equation
+2x%5E2%2Bx%2B6=0+

Click here to see answer by stanbon(57395) About Me 

Question 363966: solve for w
+aw%5E2%2B2bw%2B3c=0+

Click here to see answer by Alan3354(30993) About Me 

Question 363980: how to open this (1+i)^4 and (1-i)^4
Click here to see answer by Alan3354(30993) About Me 

Question 363908: 3x^2+12x+5=p(x+q)^2+r
Find the values of p,q and r

Click here to see answer by jim_thompson5910(28598) About Me 

Question 364001: A boat starts at point A, moves 3 km north, then 2 km east, then 1 km south, and then 4 km east to point B. Find the distance AB.
Click here to see answer by Alan3354(30993) About Me 

Question 364006: Create the quadratic equation in the form y=ax^2+bx+c using the point (-5,6) as a point on the graph and (9,-9) as the vertex.
I know the answers, I'm just not sure how to start solving for it.

Click here to see answer by stanbon(57395) About Me 
Question 364006: Create the quadratic equation in the form y=ax^2+bx+c using the point (-5,6) as a point on the graph and (9,-9) as the vertex.
I know the answers, I'm just not sure how to start solving for it.

Click here to see answer by robertb(4012) About Me 

Question 364026: solve for x
x^2 + 25= 8x

Click here to see answer by Fombitz(13828) About Me 

Question 364028: x/(x^2-4) - 1/x^2+4x+4

How do I solve this?

Click here to see answer by unlockmath(1603) About Me 

Question 364031: a student opens a mathematics book to two facing pages. the product of the page number is 702. find the page number.
the first page is
the second page is

Click here to see answer by unlockmath(1603) About Me 
Question 364031: a student opens a mathematics book to two facing pages. the product of the page number is 702. find the page number.
the first page is
the second page is

Click here to see answer by dlh(17) About Me 

Question 364052: b/3 = -3/4
Click here to see answer by user_dude2008(1861) About Me 

Question 363930: Directions:
Use the compound interest formulas A=P(1+r/n )^nt and A=pe^rt to solve.
Suppose that you have $7000 to invest. Which investment yields the greater return over 9 years: 8.75% compounded continuously or 8.9% compounded semiannually?
Can someone help me? I have to show all my work, so any help is greatly appreciated.

Click here to see answer by solver91311(16897) About Me 

Question 364054: Solve the formula for the indicated variable.
I= E/R+r for R

Click here to see answer by vasumathi(46) About Me 

Question 363968: +-1%2F3y%5E2%2B12+
Click here to see answer by Alan3354(30993) About Me 

Question 364165: write a quadratic equation in the variable x having given numbers as solutions. Type in standard form solution 9, only solution?
Click here to see answer by Earlsdon(6287) About Me 

Question 364409: How do you solve 3x^2 - 6x = 2 by completing the square?
Click here to see answer by mananth(12270) About Me 

Question 364529: w^2 + 49 = 0
a^2 - 40 = 0
w^2 = -225
3v^2 + 4v -1 = 0

Click here to see answer by edjones(7569) About Me 

Question 364561: what is the diag. of a 165 ft.sq. (165x4)
Click here to see answer by rfer(12670) About Me 

Question 364688: If i^2 =-1, then i^142 =?
Click here to see answer by Fombitz(13828) About Me 

Question 364733: factor each trionimal,if possible.
3a2+13a+4

Click here to see answer by robertb(4012) About Me 

Question 364774: explain the difference between simplyfing and evaluating
4x-6y-7x+8
x=5 y=2

Click here to see answer by Edwin McCravy(8912) About Me 

Question 364851: One number is three less than twice another. The sum of their squares is 74. Find the numbers.
Click here to see answer by stanbon(57395) About Me 

Question 364906: 2x^2/3 - 8x^1/3 + 15 = 0
Thanks for your help and time!!!

Click here to see answer by Jk22(389) About Me 
Question 364906: 2x^2/3 - 8x^1/3 + 15 = 0
Thanks for your help and time!!!

Click here to see answer by jsmallt9(3296) About Me 

Question 364961: write the quadratic function in the vertex form. then identify the axis of symmetry and vertex..y=x^2+7x-2
Click here to see answer by Fombitz(13828) About Me 

Question 364888: X^2-10x-3=0
how do can I figure out which method to best use when asked to solve it by factoring, completing the square, or by quadratic formula? May you please give examples also? your time is greatly appreciated :)

Click here to see answer by Fombitz(13828) About Me 

Question 364761: factor each polynomial.
s3-t3

Click here to see answer by Fombitz(13828) About Me 

Question 364960: write the expression in quadratic form: 3x^12+20x^6+6
Click here to see answer by Fombitz(13828) About Me 

Question 364993: 1. how do I write the quadratic function in the form y=a(x-h)^2+k for this problem:
y=2x^2+20x+84 ????

Click here to see answer by Fombitz(13828) About Me 
Question 364993: 1. how do I write the quadratic function in the form y=a(x-h)^2+k for this problem:
y=2x^2+20x+84 ????

Click here to see answer by amoresroy(333) About Me 

Question 364996: 4.how do I find all of the real and imaginary zeros for the polynomial function for
f(x)=x^3-2x^2-25x+50 ????

Click here to see answer by Alan3354(30993) About Me 

Question 364860: The length of a rectangle is twice the width. The area is 72 square inches. Find the length and width of the rectangle.
Click here to see answer by Alan3354(30993) About Me 

Question 364995: 3.how do I find the rational zero theorem to find all possible rational zeros for the polynomial function
P(x)=2x^3+9x^2+12x-8 ????

Click here to see answer by Fombitz(13828) About Me 

Question 364853: One formation for a drill team is rectangular. The number of members in each row exceeds the number of rows by 3. If there is a total of 108 members in the formation, how many rows are there?
Click here to see answer by Alan3354(30993) About Me 

Question 364997: 5.how do I solve the inequality and give the answer in interval notation?
(x+8)(x+3)(x-3)>0 ?????

Click here to see answer by Fombitz(13828) About Me 

Question 364994: 2.how do I use synthetic division to find the function value
f(x)=4x^3+2x^2-6x+2; finding f(-2) ??????

Click here to see answer by Fombitz(13828) About Me 

Question 364842: how do you find the zeros of the polynomial 2x^4-5x^3-2x^2+10x-4=0
Click here to see answer by Fombitz(13828) About Me 

Question 365056: Hi Guys, stuck on these questions on differentiation.

Find dy/dx with respect to x the following expressions
i) y=x^3-6x^2+9x-1
ii) y=1/2x-sqrtx
iii) y=e^x-e^-x
and
i)y=25cosx-sinx
ii) y=3sinhx-4coshx
iii) y=ln(x)-ln(x+1)
Thank You

Click here to see answer by Alan3354(30993) About Me 

Question 365134: solve for x : 2x over 9 = 1 over 3
Click here to see answer by ewatrrr(10682) About Me 

Question 365126: Find -a + b - c + d if (x - 1/5)(x + 1)(x + 3/7) = ax^3 + bx^2 + cx + d
for all real values of x.

Click here to see answer by Fombitz(13828) About Me 

Question 365276: Find an equation that has the solutions x=+-2i
Click here to see answer by robertb(4012) About Me 

Question 365285: w+8-2w>0
Click here to see answer by mananth(12270) About Me 

Question 365383: Identify the degree of each term of the polynomial and the degree of the polynomial.
-5x^3+5x^2+8x+9
I need the
degree of the first term
degree of the second term
degree of the third term
degree othe fourth term
and degree of the polynomial
You help with this will be very helpful.

Click here to see answer by Alan3354(30993) About Me 

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, 17551..17595, 17596..17640, 17641..17685, 17686..17730, 17731..17775, 17776..17820, 17821..17865, 17866..17910, 17911..17955, 17956..18000, 18001..18045, 18046..18090, 18091..18135, 18136..18180, 18181..18225, 18226..18270, 18271..18315, 18316..18360, 18361..18405, 18406..18450, 18451..18495, 18496..18540, 18541..18585, 18586..18630, 18631..18675, 18676..18720, 18721..18765, 18766..18810, 18811..18855, 18856..18900, 18901..18945, 18946..18990, 18991..19035, 19036..19080, 19081..19125, 19126..19170, 19171..19215, 19216..19260, 19261..19305, 19306..19350, 19351..19395, 19396..19440, 19441..19485, 19486..19530, 19531..19575, 19576..19620, 19621..19665, 19666..19710, 19711..19755, 19756..19800, 19801..19845, 19846..19890, 19891..19935, 19936..19980, 19981..20025, 20026..20070, 20071..20115, 20116..20160, 20161..20205, 20206..20250