Mathematics for IGCSE & O level - Equations (Section 5 - No. 44)
If you have (x + 2)(x - 3) = 0, what are the solutions for x?
x = 2, x = 3
x = -2, x = 3
x = 2, x = -3
x = -2, x = -3
설명
Set each factor to zero: x + 2 = 0 => x = -2; x - 3 = 0 => x = 3