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what must be multiplied to (x-6) to obtain x^2-x-30?

Sagot :

The answer is (x + 5)

SOLUTION:

Rewrite –x as a Difference

x² + 5x - 6x - 30

Factor out x from the expression in x² + 5x - 6x - 30

x(x + 5) - 6x - 30

Factor out –6 from the expression in x(x + 5) - 6x - 30

x(x + 5) – 6(x + 5)

Factor out (x + 5) from the expression

(x + 5) (x - 6)