Questions on Algebra: Quadratic Equation answered by real tutors!

Tutors Answer Your Questions about Quadratic Equations (FREE)

Question 337097: how do you solve this equation
(6a-1)(5a+21)=0
Click here to see answer by Fombitz(32388)

Question 337096: how do you simplify and write this equation in standard form and then solve it
2x squared+ 50= 25x
Click here to see answer by Fombitz(32388)

Question 337113: 25y^2 + 16 = 0
Click here to see answer by Fombitz(32388)

Question 337155: how do you solve the quadratic equation 2x squared= 512
Click here to see answer by solver91311(24713)

Question 337153: how do you solve the quadratic equation 5b squared + 37b - 130=0
Click here to see answer by solver91311(24713)

Question 337156: how do you solve the quadratic equation m squared- 169= 0
Click here to see answer by solver91311(24713)

Question 337229: give exact and approximate solutions to three decimal places for:
x^2+5x-7=0
Click here to see answer by solver91311(24713)

Question 336452: what is the vertex of a parabola that is pointing downward and contains the points (-2,2), (0,1), and (1,2.5).
Click here to see answer by Fombitz(32388)

Question 337281: A Carpenter is building a rectangular room with a fixed perimeter of 192ft. What dimensions would yield the maximum area? What is the maximum area?
the length that would yield the maximum area is ________ ft.
Click here to see answer by stanbon(75887)

Question 337463: What is the sum of + ? I tried to FOIL the question but it didn't seem to work. Should I have added 9a^2 and 7a^2 then -3a and 11a and then try to divide those answers from 14?
Click here to see answer by Alan3354(69443)

Question 337494: 2(x-4)^2+x^2=x(x+50)-46x solve the equation
Click here to see answer by jim_thompson5910(35256)

Question 337531: f(x) = -3 (x-2)2 + 12 find the coordinates of the vertex for the parabola defined by the given quardratic function.
Click here to see answer by Fombitz(32388)

Question 337488: graph the quadratic equations y=(x+2)(x+2)+1
Click here to see answer by Fombitz(32388)

Question 337526: f(x) = 2(x-3)2 + 1 find the coordinates of the vertex parabola defined by the given quadaratic function.
Click here to see answer by Fombitz(32388)

Question 337652: 2x2+9x+4=0
I could really use some help with this problem
Click here to see answer by Fombitz(32388)

Question 337618: Please help me transform this in standard form and find the value of a, b and c:
x(3x-4x+5)=6
Click here to see answer by Fombitz(32388)

Question 337605: 8y�-72=0
Click here to see answer by Fombitz(32388)

Question 337510: h(x) = -(x-2)2 . How do you graph this problem
Click here to see answer by Fombitz(32388)

Question 337633: At t=0 seconds, Vikki stood on the roof of a building and threw a penny in the air. The height in feet h(t) of the ball at t seconds is given by the formula
H(t) = -16t^2 + 96t +56
a)How tall is the building (hint: t=0)
b)When is the ball at its highest point?
c)To what height does the ball travel?
d)When does the ball strike the ground?
Click here to see answer by nerdybill(7384)

Question 337287: Aki's Bicycle Designs has determined that when x hundred bicycles are built, the average cost per bicycle is given by C(x)=0.5x^2-0.6x +3.659 where C(x) is in hundreds of dollars. How many bicycles should the shop build to minimize the average cost per bicycle?
The shop should build ______ bicycles.
Click here to see answer by nyc_function(2741)

Question 337737: use the quadratic formula to determine the x-intercepts (if any) of the following function. Then evaluate the function for several values of x,use the resulting points to graph the function. show your work.

Could someone please help me with this problem?
Thank you so much.
Click here to see answer by stanbon(75887)

Question 337761: (p-2)^2=4p
Click here to see answer by jim_thompson5910(35256)

Question 337763: 2p^2+8p=-3
Click here to see answer by jim_thompson5910(35256)

Question 337831: Use the quadratic formula to determine the x-intercepts (if any) of the following function. Then evaluate the function for several values of x, and use the resulting points to graph the function.
f(x)= 2x^2
I got one(I think).
2x^2= 0
divide each side by 2
2x^2/2= 0/2
x^2= 0
x= 0
Am I doing this correctly? I need to plot several points.
Click here to see answer by Alan3354(69443)

Question 337910: Problem to solve is: z^1/2 - 4z^1/4 + 4 = 0
so I let u=z^1/4 and I let u^2=z^1/2
Then I get u^2-4u+4=0 which factors to (u-2)^2
So U-2=2
U=2
My question is how do I check this. I am confused. May I please ask for help?
Thank you
Click here to see answer by scott8148(6628)

Question 337952: the sum of two numbers is 23. the product of the two same numbers is 90. what are those two numbers
Click here to see answer by nyc_function(2741)

Question 337952: the sum of two numbers is 23. the product of the two same numbers is 90. what are those two numbers
Click here to see answer by edjones(8007)

Question 337897: How can you use the discriminant to determine if a quadratic polynomial can be factored?
Click here to see answer by Fombitz(32388)

Question 337517: h(x) =2 (x-2)2 -1 This is graphing what is the answer to this problem
Click here to see answer by nyc_function(2741)

Question 338157: z^1/2-4z^1/4+4=0
Click here to see answer by CharlesG2(834)

Question 338172: How do you solve Tickets = -0.2x^2 + 12x +11? It is also in an application practice having 9 other questions
Click here to see answer by solver91311(24713)

Question 338252: My problem involves solving quadratic equations using the zero product property.
I couldn't figure out how to make this one work. It is: m^3+5m^2-9m-45=0. Any help would be greatly appreciated.
Click here to see answer by scott8148(6628)

Question 338389: w+1=20
Click here to see answer by backback(24)

Question 338396: I need help with quadratic functions and their graph from the starting, step by step.
Click here to see answer by backback(24)

Question 338394: Please help me solve this equation:
Click here to see answer by backback(24)

Question 338394: Please help me solve this equation:
Click here to see answer by jim_thompson5910(35256)

Question 338392: What does 5 squared equal?
Click here to see answer by backback(24)

Question 338445: I was doing my homework solving quadratic equations when I came to a problem which doesn't match the formula I was using and I am stumped.I do not know how to do exponets on my keyboard so I am going to write it out for you. The problem is this; m square + 2m = 6. Thanks for your help
Click here to see answer by jim_thompson5910(35256)

Question 338453: Divers fall from a point 36 meters above the sea.
a) How long does it take them to hit the water?

b) What is their velocity when they enter the water?

I dont know how to solve
Click here to see answer by scott8148(6628)

Question 338523: (6x-5)=x/6 i know the answers are {-2/3rds or 3/2) but i dont know how it's done
Click here to see answer by Fombitz(32388)

Question 338630: If x^2 + 7x - 8 = 0 ans y = x - 5, then what are the possible values of y?
(A)-8 and 0.1 (B) -8 and -13 (C) 1 and -4 (D) -3 and -4 (E) -13 and -4
Click here to see answer by Fombitz(32388)

Question 338653: The product of the page number on two facing pages of a book is 420,find the page numbers.
Click here to see answer by Alan3354(69443)

Question 338653: The product of the page number on two facing pages of a book is 420,find the page numbers.
Click here to see answer by jim_thompson5910(35256)

Question 338663: Use the quadratic formula to solve the equation. 2x^2-x=-6
The solution set is {___}?
Click here to see answer by checkley77(12844)

Question 338712: what is this factor completely x^4 y^3-81y^3
Click here to see answer by mananth(16946)

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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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, 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