Question

Factorize x square +9x- 90

Answer 1

Step-by-step explanation:

using splitting the midle term method

x square +9x-90=x square +15x-6x-90

taking x as common in the first 2 terms and -6 in the after terms we get

x(x+15)-6x(x+15)=(x-6)(x+15)

hope it helps

Answer 2

Step-by-step explanation:

x² + 9x - 90

x² + 15x - 6x - 90

x(x + 15) - 6(x + 15)

(x - 6) (X + 15)

Either: (X - 6) = 0 OR (x + 15) = 0

x = 6 AND x = -15

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