enenche1990 enenche1990

18-01-2020
Mathematics

contestada

solve x²-x-30=0 using the factorisation method.

Respuesta :

josshyaby josshyaby

18-01-2020

Answer:

Step-by-step explanation:

x²-x-30=0

x² - 6x + 5x - 30 = 0

(x² - 6x) + (5x - 30) = 0

x(x - 6) + 5(x - 6) = 0

(x + 5)(x - 6) = 0

x + 5 = 0 or x - 6 = 0

x = -5 or x = 6

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