| 69416 | As x increases from 155 to 166, which of the following must… | Medium | |
| 69494 | Which of the following expressions CANNOT be equal to 0 when x^2… | Medium | |
| 69569 | Find the value of a/b + b/a, if a and b are… | Medium | |
| 69680 | In the equation ax^2 + bx + c = 0 a, b… | Medium | |
| 69857 | If x^2+(1/x^2)=5, x^4+(1/x^4)= | Medium | |
| 70026 | If x^2 – 4x = 5, then one possible value of x… | Medium | |
| 70194 | If x and y are integers such that x^2= y and xy… | Medium | |
| 70236 | If f(x) = x^2/(x^5 - 1), what is f(1/x) in terms of… | Medium | |
| 70275 | Which of the following expressions CANNOT be equal to 0 when x^2… | Medium | |
| 70708 | If x is an integer, and 169 < x^2 <= 361, which… | Medium | |
| 70986 | If xy = 5 and x^2 + y^2 = 15, then x/y… | Medium | |
| 71085 | If x and y are integers such that x^2= 3y and xy… | Medium | |
| 71331 | If x is a number such that x^2 + 5x - 6… | Medium | |
| 71400 | If x^2=x -1, then x^3= | Medium | |
| 71921 | If x^2=x+3, then x^3= | Medium | |
| 73354 | In the xy-coordinate plane, the graph of y = -x^2 + 9… | Medium | |
| 73366 | If [[x]] = x^2 + 2x + 4, what is the value… | Medium | |
| 73394 | If f(x) = 4x − √x and g(x) = x^2, what is… | Medium | |
| 73780 | If (x^2 + 1)y=4, which of the following is not a possible… | Medium | |
| 74358 | Let f(x) = x^2 + bx + c | Medium | |
| 74710 | If x^2 + 1/x^2 = 9, what is the value of x^4… | Medium | |
| 74892 | x+(1/x) = 3 find x^2 + (1/x^2) | Medium | |
| 75012 | Which of the following equations has a root in common with x^2−3x+2=0… | Medium | |
| 75102 | In the equation ax^2 + bx + c = 0 a, b… | Medium | |
| 75170 | Let f(x) = x^2 + bx + c | Medium | |
| 75497 | If |x^2 − 20| = x, which of the following could be… | Medium | |
| 75690 | If x is an integer and (x)(x^2)(x^3)(x^6) is positive, which of the… | Medium | |
| 75806 | Let f(x) = x^2 + bx + c | Medium | |
| 75853 | In the xy-coordinate plane, the graph of y = -x^2 + 9… | Medium | |
| 76358 | If x and y are different integers and x^2 = xy, which… | Medium | |
| 76446 | If (x^2 + 1)y=5, which of the following is not a possible… | Medium | |
| 76628 | Which of the following expressions CANNOT be equal to 0 when x^2… | Medium | |
| 76647 | In the quadratic equation ax2 - 5x - 24 = 0, if… | Medium | |
| 76941 | If x^2 = 161, which of the following is closest to a… | Medium | |
| 76961 | If x#y is defined to equal x^2/y for all x and y… | Medium | |
| 76977 | The area of one square is x^2 + 10x + 25 and… | Medium | |
| 76987 | If x^2 + y^2 = 13 and xy = 3, then (x… | Medium | |
| 77394 | If (4 - x)/(5 + x) = x, what is the value… | Medium | |
| 77414 | If x and y are integers such that x^2+4x+2y+6=2x^2+5x+y-6, we can deduce… | Medium | |
| 77485 | Solve the following quadratic equation by factoring | Medium | |
| 77512 | If x, y, and z are positive integers such that x^2 +… | Medium | |
| 77976 | If f(x) =6* (x^4 - 1)/(x^2), what is f(1/x) in terms of… | Medium | |
| 78204 | If (x^2 + 2x - 9)/2 ≤ x -4, then x could… | Medium | |
| 78239 | If xy not equal 0 and x^2*y^2 -xy = 42, which of… | Medium | |
| 78632 | If x and y are integers such that x^2+2x+2y+3=2x^2+3x+y+1, we can deduce… | Medium | |
| 78871 | If (x/y)=(11/5), find the value (x^2+y^2)/(x^2-y^2) | Medium | |
| 79059 | Let y = 2g + x^2 and g = 5x + 1 | Medium | |
| 79190 | If 0 < x < 1 and x ≠ 0, which of… | Medium | |
| 79274 | Which of the following describes all values of x for which 16-x^2… | Medium | |
| 79808 | If (5 - x)/(7 + x) = x, what is the value… | Medium | |