Question

(y2-8y)-(-y)
simplify

Answer 1

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$= (y {}^{2} - 8y) - ( - y) \\ = y {}^{2} - 8y + y \\ = y {}^{2} - 7y$

Answer 2

Hey mate, here is your answer -:)

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$= ( {y}^{2} - 8y) - ( - y) \\ = {y }^{2} - 8y + y \\ = {y}^{2} - 7y$

HOPE it helps to you!!!