Question

x²+13x=-40


usando factorización

ayúdenme porfis

Answer 1

x² + 13x = - 40

x² + 13x + 40 = 0

x             + 8

x             + 5

5x + 8x = 13x

(x +8)(x +5) = 0

x + 8 = 0         x + 5 = 0

x = -8               x = - 5

CS = (-8: -5)