| 47172 | If x is a number such that x^2 + 4x - 5… | Medium | |
| 47364 | If [[x]] = x^2 + 2x + 4, what is the value… | Medium | |
| 47511 | If 1< x < 2, which of the following must be true | Medium | |
| 48068 | If -1 < x < 0, which of the following must be… | Medium | |
| 48406 | Which of the following equations has a solution in common with x^2… | Medium | |
| 48476 | If x + y = 13 and x – y = 3… | Medium | |
| 48759 | If x is an integer, and 100 < x^2 <= 361, which… | Medium | |
| 48797 | If f(x) = 2x − √x and g(x) = x^2, what is… | Medium | |
| 49612 | In the quadratic equation ax2 + 8x + 16 = 0, if… | Medium | |
| 49833 | The sum of all solutions for x in the equation x^2 –… | Medium | |
| 49976 | If a and b are the roots of the equation x2 -… | Medium | |
| 50105 | What is the range of all the roots of |x^2 - 5|… | Medium | |
| 51662 | If -3 < x < 0, which of the following must be… | Medium | |
| 52346 | Which of the following describes all values of x for which 9-x^2… | Medium | |
| 52361 | Let f(x) = x^2 + bx + c | Medium | |
| 52655 | If f(x) = 12 - x^2/2 and f(2k) = 3k, what is… | Medium | |
| 52843 | If x^2+(1/x^2)=2, x^4+(1/x^4)= | Medium | |
| 53170 | If x+y=5, and x=15/y, what is the value of x^2+y^2 | Medium | |
| 53364 | A(4, w^2) is the (x, y) coordinate of point located on the… | Medium | |
| 53769 | Let y = 2g + x^2 and g = 4x + 1 | Medium | |
| 54062 | If x^2 + y^2 = 2xy, then (x+y)^2 = | Medium | |
| 54507 | If x≠4 and (x^2 - 16)/(2y) = (x - 4)/4, then in… | Medium | |
| 55303 | The area of one square is x^2 + 10x + 25 and… | Medium | |
| 55395 | If (x/y)=(8/5), find the value (x^2+y^2)/(x^2-y^2) | Medium | |
| 55454 | If -1 < x < 0, which of the following must be… | Medium | |
| 56077 | Find the value of a/b + b/a, if a and b are… | Medium | |
| 56091 | y = x^2 + bx +64 cuts the x axis at (h… | Medium | |
| 56132 | If the equation x^2−6x=-k has at least one solution, which of the… | Medium | |
| 56275 | Find the value of x from the below equation | Medium | |
| 56491 | If 2 is one solution of the equation x^2 + 3x +… | Medium | |
| 57109 | Which of the following equations has a root in common with x^2−4x+4=0… | Medium | |
| 57111 | If x and y are positive integers, and 4x^3=3y, then which of… | Medium | |
| 57756 | Let y = 2m + x^2 and m = 5x + 4 | Medium | |
| 57794 | Which of the following describes all values of x for which 9–x^2… | Medium | |
| 58064 | If (x/y)=(9/5), find the value (x^2+y^2)/(x^2-y^2) | Medium | |
| 58262 | If x^2=x+2, then x^3= | Medium | |
| 58297 | A(3, w^3) is the (x, y) coordinate of point located on the… | Medium | |
| 58650 | What is the range of all the roots of |x^2 - 3|… | Medium | |
| 59287 | Let f(x) = x^2 + bx + c | Medium | |
| 59667 | For what value of x between − 7 and 7, inclusive, is… | Medium | |
| 59823 | If the equation x^2−6x=-2k has at least one solution, which of the… | Medium | |
| 60836 | Which of the following describes all values of x for which 1–x^2… | Medium | |
| 61633 | If x and y are numbers such that (x+4)(y-4)=0, what is the… | Medium | |
| 61810 | If a and b are the roots of the equation x2 -… | Medium | |
| 62163 | If one root of the equation 2x^2 + 3x – k =… | Medium | |
| 62696 | Find the value of a/b + b/a, if a and b are… | Medium | |
| 63132 | If x and y are positive integers, and 4x^2=3y, then which of… | Medium | |
| 63150 | If f(x) = 6x − √x and g(x) = x^2, what is… | Medium | |
| 63496 | Which of the following describes all values of x for which 16–x^2… | Medium | |
| 63666 | If x^2 = y^3 , where x and y are non negative… | Medium | |