This is an expression, not an equality (or inequality). It, therefore, cannot have a solution.
(x - 5)(x + 4)
62 - 16 = 20
4x + 20
x2 - x = 20 x = 5
3x squared minus 25x minus 28
2x squared minus 4
No, unless "a" happens to be equal to 0, or to 1.
x = ? 42 = x squared minus x
-22 - -22
hello
answer is p/5. problem: {[(p^2)-3p]/[(p^2)-6p+9]}/{20/(4p-12)}
(9y+2z)(y-3z)