# Questions on Algebra: Quadratic Equation answered by real tutors!

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 Quadratics: solvers Practice! Answers archive Lessons Word Problems In Depth

 Question 263068: Solve x^2-64/x^2+13x+36= Click here to see answer by Alan3354(31537)

 Question 263253: 9x^2+21x-8=0 i can have fractions for an answer Click here to see answer by jim_thompson5910(28717)

 Question 263308: Red birds and blue birds, 30 in all, feasted on worms in my yard. The red birds got 108 worms in total, as did the blue birds. Each blue bird got 3 fewer worms than each red bird. How many blue birds were there? Click here to see answer by Theo(3504)

 Question 263326: Write a quadratic expression having the given numbers as solutions 3/5, -9 Click here to see answer by Alan3354(31537)
 Question 263326: Write a quadratic expression having the given numbers as solutions 3/5, -9 Click here to see answer by richwmiller(9144)

 Question 263330: Use the discriminant to determine whether the following equations have solutions that are: two different rational solutions; two different irrational solutions; exactly one rational solution; or two different imaginary solutions. 10 - 5a2 = 7a + 9 Click here to see answer by richwmiller(9144)

 Question 263232: The sum of two numbers is 60. Find the numbers if their product is a maximum. Thank you. Click here to see answer by Alan3354(31537)

 Question 263376: can any quadratic function of the form y=ax^2+bx+c be changed into a quadratic function in vertex form by completing a square? Click here to see answer by drk(1908)

 Question 263451: Find the length and midpoint of the line segment between the given points. P1(7, -2), P2(-4, -1) Click here to see answer by drk(1908)

 Question 263486: I am stuck on finding a quadratic model for (1,-2), (2,-2), (3,-4). I do not know how to put x numbers and y numbers in the formulas and how to solve the answer? Click here to see answer by stanbon(57982)

 Question 263558: 5(x+3)-3(x+4)=2(x-3) Click here to see answer by drk(1908)
 Question 263558: 5(x+3)-3(x+4)=2(x-3) Click here to see answer by stanbon(57982)

 Question 263489: I am stuck on finding a quadratic model for (1,-2), (2,-2), (3,-4). I do not know how to put x numbers and y numbers in the formulas and how to solve the answer? How do you get the three equations with variables a, b, and c? How do you find the values for a,b, and c? Thanks! Click here to see answer by scott8148(6628)

 Question 263641: Find all solutions of the equation x^2-8x+3=0 Click here to see answer by jim_thompson5910(28717)

 Question 263703: solve the quadratic equation x-2x+4=0 Click here to see answer by JBarnum(2044)

 Question 263761: The Question: -10,000+8,000/(1+x)+5,625/(1+x)^2=0 Thank you Click here to see answer by JBarnum(2044)

 Question 263772: Hi, I have a quadratic factorization question that I don't know how to do... It's a Year 11 Maths question: 4x^4-37x^2+9 I have to factorize that and I would show you what I've done so far but I have no idea how to do this question... Thank you so much for your help! :) Click here to see answer by mananth(12270)

 Question 264072: solve 5x^2 = 75 Click here to see answer by checkley77(12569)

 Question 264149: Hello, using the quadratic formula, can you help me solve 3x^2-12x+11=0? Click here to see answer by jim_thompson5910(28717)

 Question 264100: 5(x+9)+2= -5(x-1)-1 Click here to see answer by scott8148(6628)

 Question 264182: 3r+6-9r=24 Click here to see answer by rfer(12730)

 Question 264235: How do get letter alone, example "n" divided by 46 Click here to see answer by stanbon(57982)

 Question 264336: solve this equation y2=144 and round to the nearest tenth Click here to see answer by JBarnum(2044)

 Question 264387: Bart can complete his science task twice as quickly as Carl can. When they Work together, the task takes 3 hours. How long would it take Carl to do the work alone? Click here to see answer by Edwin McCravy(8999)

 Question 264313: for each quadriatic function(a) find the vertex, the axis of symmetry, anf the maximum or minimum function value and (b) graph the function. f(x) = 4Xsquare + 16x +13 Click here to see answer by Alan3354(31537)

 Question 264597: 2a-5b=4 5a-2b=3 Click here to see answer by checkley77(12569)

 Question 264621: How do you know if a quadratic equation will have one, two, or no solutions? How do you find a quadratic equation if you are only given the solution? Is it possible to have different quadratic equations with the same solution? Please explain and provide examples if possible. Click here to see answer by stanbon(57982)

 Question 264629: Complete the square,simplify. Express any complex numbers using i notation (2x )(x ) I am stuck because I can not figure out which 2 numbers multiply to 9 and add to 5.If I use (2x+3)(x+1) I can get 5x but no 9. Please help! This is where I always get stuck while factoring. Click here to see answer by jim_thompson5910(28717)

 Question 264649: This problem looks easy, but I can't figure it out. I think I am just supposed to factor it? (x+3)(x+3)....?? Click here to see answer by jim_thompson5910(28717)

 Question 264648: Solve by quadratic formula and simplify Do I just factor this problem now since it is already in standard form? I am not sure Click here to see answer by jim_thompson5910(28717)

 Question 264732: Simplify the equation, then solve by the quadratic formula. Use i notation for nonreal complex numbers. 3x^2 -4x = -4 (4/2)^2 = 4 3x^2+4 -4x= Now I am confused! Click here to see answer by jim_thompson5910(28717)

 Question 264754: Solve the equations using the sq rt property 3x-9= +/ sq rt 81 3x = 9 +/ sq rt 81 x = 9+/ sq rt 81/3 Should I reduce this all the way? It seems like a strange answer because 9,81,and 3 are all connected. Click here to see answer by jim_thompson5910(28717)
 Question 264754: Solve the equations using the sq rt property 3x-9= +/ sq rt 81 3x = 9 +/ sq rt 81 x = 9+/ sq rt 81/3 Should I reduce this all the way? It seems like a strange answer because 9,81,and 3 are all connected. Click here to see answer by mananth(12270)
 Question 264754: Solve the equations using the sq rt property 3x-9= +/ sq rt 81 3x = 9 +/ sq rt 81 x = 9+/ sq rt 81/3 Should I reduce this all the way? It seems like a strange answer because 9,81,and 3 are all connected. Click here to see answer by josmiceli(9817)
 Question 264754: Solve the equations using the sq rt property 3x-9= +/ sq rt 81 3x = 9 +/ sq rt 81 x = 9+/ sq rt 81/3 Should I reduce this all the way? It seems like a strange answer because 9,81,and 3 are all connected. Click here to see answer by Edwin McCravy(8999)

 Question 264812: what are the factors of 6r^2+3rs-18s^2 Click here to see answer by mananth(12270)

 Question 264817: Solve: For the function given by f(x)= 2x^2 - 12x + 23. First find the vertex and the axis of symmetry, then graph the function Click here to see answer by stanbon(57982)

 Question 264874: x^2+4x+2=0 Click here to see answer by JBarnum(2044)

 Question 264875: Solve for variable t A = P(1 + rt) Click here to see answer by mananth(12270)

 Question 264879: Order of operations is essential to get the correct answer. Write the quadratic formula [NOT THE DERIVATION] all on ONE HORIZONTAL LINE being especially careful to include the correctly placed THREE SETS OF parenthesis that will insure you answer will be done in the correct order to get the correct two values for x. Click here to see answer by Theo(3504)

 Question 264878: Solve the following equation for ALL SOLUTIONS x^2-10x= -9 using the QUADRATIC FORMULA and INCLUDING AT LEAST THE FIRST TWO MIDDLE STEPS Click here to see answer by mananth(12270)
 Question 264878: Solve the following equation for ALL SOLUTIONS x^2-10x= -9 using the QUADRATIC FORMULA and INCLUDING AT LEAST THE FIRST TWO MIDDLE STEPS Click here to see answer by Theo(3504)