3√7−2√28−5√63− 3√32−4√7+√175
1/2 < 3x + 4 < 13
{x|x ϵ W, 5 < x <15}
jz² - 16x²= 7y² + 49wz². Give the equation for z in terms of w, x, y and j.
14 <= 2 - 3g < 15
(x-2)^2
(x-1)^2
[4÷(6-2)+7²] - [2-(-5)]²
2x+y=6
2x-y=2