Questions on Algebra: Quadratic Equation answered by real tutors!

Tutors Answer Your Questions about Quadratic Equations (FREE)

Question 327900: i am doing completing the square and i want to make sure i have it right
solve: x squared + 2x = 8 by completing the square
Click here to see answer by Earlsdon(6287)

Question 327900: i am doing completing the square and i want to make sure i have it right
solve: x squared + 2x = 8 by completing the square
Click here to see answer by meay7c(10)

Question 327905: x^2+.59x-53.86=0
Click here to see answer by Edwin McCravy(8908)

Question 327916: If you are looking at a graph of a quadratic equation, how do you determine where the solutions are?
Click here to see answer by Fombitz(13828)

Question 327983: What is the sum of the 2 real solutions to the equation x = 6 – x^2 ?

Click here to see answer by galactus(183)

Question 327999: y^2=4/5y+4/7= 2 real solutions, one real or two non-real. I say one real because the fractions are opposites of each other? Right? x^2+6x+9=25 solve for x In this equation it asks for an exact amount.Couldn't I factor this one out to find the value? 9x^2+12x+4 find x and y intercepts At total loss on this one.
Click here to see answer by Fombitz(13828)

Question 328056: Hello. I was hoping you could please help me with this problem.
I have to factor completely, and if prime, say so.
a. 40x^3 - 64x^2y
b. 13-14y + y^2
c. 9x^2- 30 + 25
I was hoping you could please show me how to factor these, because I don't know how to. Thank you so much.

Click here to see answer by ankor@dixie-net.com(15649)

Question 328148: How would I graph the following quadratic function and label the vertex.
f(x) = 2x^2-12x+10
Click here to see answer by nyc_function(2733)

Question 328177: The length of a rectangle is twice the width. The area is 512 yd^2. Find the length and the width. The length is how many yards? The width is how many yards?
Click here to see answer by nyc_function(2733)

Question 328175: #1. A student opens a mathmatics book on two facing pages. The product of the page number is 272. Find the page numbers. The first page number is ? The second page number is ?
2.The number of tickets sold each day for an upcoming performance of Handel's Messiah is given by N(x)= -0.3x^2+6.6x+15, where x is the number of days since the concert was first announced. When will daily ticket sales peak and how many tickets will be sold that day? Ticket sales will peak how many days after the concert was first announced? The number of tickets sold on that day will be how many? Round to the nearest integer.
Click here to see answer by Alan3354(30993)

Question 328150: How would I determine whether the functionc have a minimum or maximum value and then find the value?
g(x)=-4x^2+8x+3
Click here to see answer by nyc_function(2733)

Question 328203: how do I evaluate 2sqrtx=x-8 into the ax^2+bx+c=0 form of the quadratic equation?
Click here to see answer by Alan3354(30993)

Question 328217: How do I factor 3y^2+2y-8??
Thank you!
Click here to see answer by user_dude2008(1861)

Question 328143: Aki's Bicycle Designs has determined that when x hundred bicycles are built, the average cost per bicycle is given by C(x)=0.2x^2-1.9x+10.614, where C(x) is in hundreds of dollars. How many bicycles should the shop build to minimize the average cost per bicycle? The shop would build how many bicycles?
Click here to see answer by edjones(7569)

Question 328155: How would I find the vertical and horizontal asymtotes of the following function?
g(x)=5x-2/4x^2-4x-3
Click here to see answer by edjones(7569)

Question 328376: find and label the vertex and the line of symmentry. Graph the function f(x)=-1/3 x^2
Click here to see answer by Fombitz(13828)

Question 328378: A.) solve 5x^2=15 what are the solutions?
B.) find the x-intercepts of f(x)=5x^2-15?
Click here to see answer by Fombitz(13828)

Question 328378: A.) solve 5x^2=15 what are the solutions?
B.) find the x-intercepts of f(x)=5x^2-15?
Click here to see answer by Alan3354(30993)

Question 328383: solve the formula for the given letter. Assume all variables represent non-negative numbers. E=mc^2, for c.
Click here to see answer by Fombitz(13828)

Question 328390: Determine the nature of the solutions of the equation. y^2=2/3 y+4/3
Click here to see answer by Fombitz(13828)

Question 328267: 100x^2-60x+9=0
Click here to see answer by Fombitz(13828)

Question 328379: Solve for x. 4x^2=-13x-10
Click here to see answer by Alan3354(30993)

Question 328455: Create a quadratic equation using 2,5
Click here to see answer by solver91311(16877)

Question 328470: Find the quadratic in standard form that goes through (-4,27), (1,2) (3,34)

Click here to see answer by solver91311(16877)

Question 328470: Find the quadratic in standard form that goes through (-4,27), (1,2) (3,34)

Click here to see answer by ankor@dixie-net.com(15649)

Question 328433: What is the vertex of f(x)=3x^2-12x+11? I have tried to follow the example in the text and can not figure it out.
Click here to see answer by scott8148(6628)

Question 328561: a rectangle's length is equal to eight times its width.if the area of the rectangle is 392 square inches, what is the width of the rectangle?
Click here to see answer by checkley77(12569)

Question 328459: Solve:
w^4-14w^2-2=0
Click here to see answer by checkley77(12569)

Question 328458: During the first part of a trip, a canoeist travels 76 miles at a certain speed. The canoeist travels 2 miles on the second part of the trip at a speed 5 mph slower. The total time for the trip is 3 hours. What was the speed on each part of the trip?
(type an integer or a decimal. Round to the nearest hundredth)
Click here to see answer by checkley77(12569)

Question 328590: Kim starts to walk 3 mi to school at
7:30 A.M. with a temperature of 0°F. Her brother Bryan
starts at 7:40 A.M. on his bicycle, traveling 10 mph faster
than Kim. If they get to school at the same time, then how
fast is each one traveling?

Could someone please help me with this word problem? I can not seem to figure get an answer/
Click here to see answer by stanbon(57328)

Question 328649: y= 2(x-1)squared -4
Click here to see answer by nyc_function(2733)

Question 328716: The length of a rectangle is 9cm mor than its width. If the area of the rectangle is 76cm^2, find the dimensions. Round to the nearest thousandth if necessary.
Click here to see answer by mananth(12270)

Question 328728: Find the vertex, the line of symmetry, and the maximum or minimum value of f(x). Graph the function. f(x)=-2(x+5)^2+4
Click here to see answer by stanbon(57328)

Question 328671: Find the value(s) of k so that 3/4 x^2 + kx = -27 has one real rational root.
Click here to see answer by Fombitz(13828)

Question 328725: Find the x-intercepts and y-intercepts. f(x)= -x+2x+8
Click here to see answer by nyc_function(2733)

Question 328735: Determine the nature of the solutions of the equation. x^2-10x+25=0
What does the equation have?

Click here to see answer by Fombitz(13828)

Question 328802: Explain how to solve a quadratic equation using the quadratic formula. Demonstrate the process with your own example.
Click here to see answer by Alan3354(30993)

Question 328813: In the equation (x+9)^2-6: Is the vertex 3,-3 and the symmetry 3?
Click here to see answer by Fombitz(13828)

Question 328813: In the equation (x+9)^2-6: Is the vertex 3,-3 and the symmetry 3?
Click here to see answer by Alan3354(30993)

Question 328769: two storage sheds are to have the same area. one is square and one is rectangular. the rectangular shed is 2 meters wide and 32 meters long. how large is one side of the square shed in meters?
Click here to see answer by Fombitz(13828)

Question 328753: During the first part of a trip, a canoeist travels 87 miles at a certain speed. The canoeist travels 9 miles on the second part of the trip at a speed 5 mph slower. The total time for the trip is 5 hours. What was the speed on the FIRST part of the trip? What was the speed on the SECOND part of the trip?
(type an integer or a decimal. Round to the nearest hundredth)
Click here to see answer by ankor@dixie-net.com(15649)

Question 328850: Hello. I was hoping you could please help me with this problem.
I have to factor completely, and if prime, say so.
a. 40x^3 - 64x^2y
b. 13-14y + y^2
c. 9x^2- 30 + 25
I was hoping you could please show me how to factor these, because I don't know how to. Thank you so much.

Click here to see answer by Edwin McCravy(8908)

Question 328801: explain how to solve a quadratic equation by completing the square. Demonstrate the process with your own example.
Click here to see answer by solver91311(16877)

Question 328923: I need help witht the following problems. Will anyone help me?
Number 1: 3-w/w-5 - 8w-7/5-w
Number 10: Find the x intercepts for the graph equation y=x^2-4x-5
Number 15: solve by removing factors of 1: 5m^2+5m/15m^2+25m
Number 20: Multiply (5 sqrt 6 -15 sqrt3)(3 sqrt 6 + 9 sqrt 3)
Number 43: Solve sqrt 9x+55 = x+5
Number 49: Solve (x+9)(x-19)(x+8)>0
Number 50: state the value of the discriminant 6x^2-7x+7=0 Type of solution
Click here to see answer by solver91311(16877)

Question 328888: solve for x and intercepts in : 3x^2=2
Click here to see answer by nyc_function(2733)

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, 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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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