(x+2)(x-3) = (x+5)(x-2 )​

Răspuns :

(x+2)(x-3) = (x+5)(x-2)

x²-3x+2x-6 = x²-2x+5x-10

x²-x-6 = x²+3x-10

x²-x - x² - 3x = -10+6

-4x = -4

x = (-4):(-4)

x = 1