Questions on Algebra: Quadratic Equation answered by real tutors!

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Question 130952: Solve for x.
1/x + 1/x+16 = 1/15
Click here to see answer by stanbon(75887)

Question 130949: Solve.
w^4-12w^2-2=0
I did a similar problem and was supposed to come up with 4 different radicals and I only came up with 2 for my answer and was told it was wrong.
Click here to see answer by solver91311(24713)

Question 130948: Solve.
3x^2-5x-13=0
Also, find the x-intercepts of f(x) = 3x^2-5x-13.

Click here to see answer by checkley71(8403)

Question 130933: Solve for r.
r^2 + 3r = 5.
The solutions are r = ________.

Click here to see answer by checkley71(8403)

Question 130919: "How do you determine a quadratic equation when the only solution provided in 8."
Click here to see answer by checkley71(8403)

Question 130905: An Art dealer advises that for the best display of a painting, the area of the frame should be (1/5) the area of the painting. Determine the best width of the frame for a painting 20-cm by 2o-cm,if the width is to be the same on all sides. Round answer to nearest tenth.
Click here to see answer by checkley71(8403)

Question 130875: Write a quadratic equation having the given numbers as solutions.
-10 and -8

Click here to see answer by mathispowerful(115)

Question 130843: Suppose at age 16 you decided to invest $5.00 in a fund that pays 8% interest compounded annually. How much money will have accrued in the fund when you retire at age 65?
Click here to see answer by checkley71(8403)

Question 130475: Solve for x: 9(^2x-1)= (81^(x+1)(27^-x) I think the answer is -2??????
Click here to see answer by cngriffith(27)

Question 130932: Solve for x.
1/x + 1/x+16 = 1/15
The solutions are x = ________.

Click here to see answer by edjones(8007)

Question 130950: 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
(-sqrt( 7 ))(root ( 8, 7 ))

Click here to see answer by TakeATuition.com(57)

Question 130882: 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.
- sqrt( 3 ) root( 3, 3 )
Click here to see answer by TakeATuition.com(57)

Question 130877: 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.
Solution: 5, only solution
I am confused with trying to back into the equation from the solution.
Click here to see answer by Earlsdon(6294)

Question 130992: Hey hows it going? Have been trying to work this one out all night, its late I'm tired, and I need to know why I cannot do this. are you able to help me please.
I am asked to :
Solve the following quadratic equations.
It is as follows:
m=20/m
Could you please let me know how when and where the -b+or-sqrtb^2-4ac/2a formula fits with this one.
Thank you so much.
Click here to see answer by checkley71(8403)

Question 130984: I have having great difficulty with these worded problems; your help would be greatly appreciated. Thank you.
It asks me:
To solve the following word problem using quadratic equation:
Then goes on to state:

Given the area of a rectangle is 90m2 and the perimeter of the rectangle is 40m, find the breadth of the rectangle.

Thank you.
Anthony

Click here to see answer by checkley71(8403)

Question 130934: 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.
Solution: 1, only solution
The equation is: ________________

Click here to see answer by mathispowerful(115)

Question 131071: I am not sure of this answer. I think the answer has one real solution. Am I correct?
x^2-3x+10=0
Does it have one real solution, two real solutions or two non-real solutions.
Click here to see answer by stanbon(75887)

Question 131070: Can some one help me? Thank you

Solve the formula for the given letter. Assume all variables represent non negatibve numbers.
E=nc^2, for c
Click here to see answer by stanbon(75887)

Question 131104: Find the vertex and the axis of symmetry for the following graph:

Click here to see answer by jim_thompson5910(35256)

Question 131105: Find the vertex and the axis of symmetry for the following graph:

Click here to see answer by jim_thompson5910(35256)

Question 131108: 4) A farmer decides to enclose a rectangular garden, using the side of a barn as one side of the rectangle. What is the maximum area that the farmer can enclose with 60 ft of fence? What should the dimensions of the garden be to give this area?
Click here to see answer by jim_thompson5910(35256)

Question 131109: 5) solve 4x+x(x-1)=0
find the x-intercepts of f(x)=4x+x(x-1)
What are the solutions x=��.
What are the x-intercepts

Click here to see answer by jim_thompson5910(35256)

Question 131119:
I can't figure out how to factor this completely the answer I keep getting is p+3(12p+52) but I don't think it is right. One of the other questions I have is
The answer I got to that is however i'm pretty sure that's wrong. If you could help me that would be great. Thanks so much
Click here to see answer by Earlsdon(6294)

Question 131125: What is the range of the function y=2(7)^(2x)-4??? I think it is y is less than -4?????????????
Click here to see answer by edjones(8007)

Question 131120: I am having some trouble with this problem.
The length of a rectangle is twice the width. The area is 392yd^2. Find the length and the width.
The length is .........yd.
The width is .........yd.
Thank You
Click here to see answer by checkley71(8403)

Question 131171: Please help me solve this equation:
(x^2)+(sqrt22)(x)=0
Thank you!
Click here to see answer by edjones(8007)

Question 131224: 6X squared + 7X = 3

Click here to see answer by jim_thompson5910(35256)

Question 131261: The problem states to solve.
4/(m^2-7) = 1
I came up with m = + or - sqrt of 11.
Not sure if I'm on the right track or not. Any help would be greatly appreciated. Thanks!
Click here to see answer by edjones(8007)

Question 131276: Hi! I really need help with this question. I have no idea how to answer it. Please help. It says to: Use the quadratic forumula to solve the following. Leave irrational roots in the simplest form.
3x^2-4x-5=0
Thank You=)

Click here to see answer by Earlsdon(6294)

Question 131319:
If x=3 and x=-5, then form a quadeatic equation. Can somebody help me?
Click here to see answer by checkley71(8403)

Question 131319:
If x=3 and x=-5, then form a quadeatic equation. Can somebody help me?
Click here to see answer by 067isa(13)

Question 131277:
Please help me. It says to: use the quadratic forumla to solve the following. Leave irrational roots in the simplest form. THe problem is: 2x^2-3x+1=0
I have no idea how to solve it. Please help=)
Thank You=)
Click here to see answer by checkley71(8403)

Question 131416: How do I solve and work this quadratic equation? X^2+6x+9=0?
Click here to see answer by Earlsdon(6294)

Question 131409: How do I solve and show the work for x^2+x-12=0?

Click here to see answer by TakeATuition.com(57)

Question 131434: i have a problem about my math homework.
my problem says: THE SUM OF THE LENGTHS OF THE TWO LEGS OF A RIGHT ANGLE TRIANGLE IS 14. FIND THE LENGTH OF THE SHORTEST HYPOTENUSE.
please solve my problem but using quadratic equations, i just cant figure out how to set up the whole thing. thank you very much!
Click here to see answer by edjones(8007)

Question 131470: Please help me! I tried answering this, I can't seem to grasp it. It asks: In the equation ax^2+bx+c=0, the value of b^2-4ac is called the discriminant of the quadratic equation. What does this value tell you about the real roots of the equation?
Please help me THank you=)
Click here to see answer by stanbon(75887)

Question 131581: how do you factor 4x^2-13x-12?
Click here to see answer by stanbon(75887)

Question 131581: how do you factor 4x^2-13x-12?
Click here to see answer by TakeATuition.com(57)

Question 131605: How do I solve.
Thank You
Solve for x
4x(x-2)-5x(x-1)=2
Click here to see answer by TakeATuition.com(57)

Question 131615: my book says to "write the equation of the axis of symmetry, and find the coordinates of the vertex of the graph of each function. identify the vertex as a maaximum or minimum. then graph the function" then it says
y=4x^2
Click here to see answer by stanbon(75887)

Question 131620: If f(x)=x+4 and g(x)=2x^2-x-1, find the composition (fog)(2) please I could use some help.
thank you
Click here to see answer by stanbon(75887)

Question 131616: y=x^2+2
Click here to see answer by jim_thompson5910(35256)

Question 131613: What is the equation of the axis of symmetry of the graph of
y=-3x^2+2x-5
Click here to see answer by jim_thompson5910(35256)

Question 131611: how do you use a table of values to graph
y=x^2-2x-8
Click here to see answer by jim_thompson5910(35256)

Question 131607: How do I solve.
Thank You
evaluate x=6
3x^2-4x+1
Click here to see answer by checkley71(8403)

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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