| 67189 | If x, y, and z are positive integers such that x^2 -… | Medium | |
| 67229 | Solve the following quadratic equation by factoring | Medium | |
| 67379 | Let y = 2g + x^2 and g = 5x + 1 | Medium | |
| 67390 | Find the value of a/b + b/a, if a and b are… | Medium | |
| 67779 | If the equation x^2−6x=2k has at least one solution, which of the… | Medium | |
| 68938 | If x, y, and z are positive integers such that x^2 +… | Medium | |
| 69928 | If x + (1/x) = 5, what is the value of E=x^2… | Medium | |
| 70006 | A calculator has a key for squaring and another key for inverting | Medium | |
| 71438 | If x and y are different integers and x^2 = xy, which… | Medium | |
| 71939 | Which of the following equations has a root in common with x^2−4x=0… | Medium | |
| 72172 | If x^2=3x+2, then x^3 = | Medium | |
| 72299 | If the curve represented by y = x^2 – 5x + t… | Medium | |
| 72318 | If y = x^2 + rx + s, y is minimum when… | Medium | |
| 73831 | If x^2 > x^3 > x^1, which of the following could NOT… | Medium | |
| 73917 | If there is exactly one root of the equation 2x^2 + ax… | Medium | |
| 74091 | If x + y + z = 0 then, x^2 + y^2… | Medium | |
| 74235 | If f(x)=x^2 and x is an integer, which of the following CANNOT… | Medium | |
| 74494 | If x is an integer, which of the following is a possible… | Medium | |
| 75099 | If y = x^2 + px + q, y is minimum when… | Medium | |
| 75402 | If there is exactly one root of the equation ax^2 + x… | Medium | |
| 75449 | Find the quadratic equations whose roots are the reciprocals of the roots… | Medium | |
| 75553 | By how much does the larger root of the equation 2c^2+5c =… | Medium | |
| 75676 | A quadratic function f(x) attains its minimum value of -15 at x=3 | Medium | |
| 75756 | On a two-dimensional coordinate plane, the line A = x^2 - x^3… | Medium | |
| 76287 | If there is exactly one root of the equation x^2 + ax… | Medium | |
| 76424 | The sum and the product of the roots of the quadratic equation… | Medium | |
| 76593 | Which of the following expressions CAN be equal to 0 when x^2… | Medium | |
| 76754 | P(x, y) is the intersection point between the circle (x^2 + y^2… | Medium | |
| 77467 | If there is exactly one root of the equation x^2 + ax… | Medium | |
| 77601 | If x>y>0, which of the following must be true: I | Medium | |
| 77719 | In the quadratic equation x2 - bx + 20 = 0, if… | Medium | |
| 77737 | If x^2 = y^2, which of the following must be true | Medium | |
| 77741 | The roots of the equation x / (x + 2) + 3… | Medium | |
| 77779 | The roots of the equation ax(2)exponent) + bx + c = 0… | Medium | |
| 77901 | Which of the following describes all values of x for which 1–x^2… | Medium | |
| 78225 | If x=-2, which of the following is(are) true | Medium | |
| 78299 | Find the value of x from the equation: x^2−7x+10=0 | Medium | |
| 78590 | On a two-dimensional coordinate plane, the line d = x^2 - x^3… | Medium | |
| 78982 | If x^2 + y^2 = 18 and xy = 3, then (x… | Medium | |
| 79547 | If -x^2 - 2y^2 = 2xy, then (x+y)^2 = | Medium | |
| 80110 | If 7 is one solution of the equation x^2 + 3x +… | Medium | |
| 80358 | Y is the set of all positive integers x such that x^2… | Medium | |
| 81119 | If x ≠ 0 and 1/x - (2+ x^2)/x = y/x, then… | Medium | |
| 82123 | If f(x)=x^2 and x is a natural number, what CANNOT be the… | Medium | |
| 82439 | If x=-3, which of the following is(are) true | Medium | |
| 82769 | Which of the following equations has a solution in common with x^2… | Medium | |
| 82910 | The roots of the equation ax2 + bx + c = 0… | Medium | |
| 83507 | Of the following quadratic equations, which is the one whose roots are… | Medium | |
| 84866 | x^2 + dx + 72 = 0 has two distinct integer roots… | Medium | |
| 85052 | T(x, y) is the intersection point between the circle (x^2 + y^2… | Medium | |