Question: Express each function in the form a b(x + c) 2 , where a, b and c are constants and, hence, state the range

Express each function in the form a − b(x + c)2, where a, b and c are constants and, hence, state the range of each function.

a. f(x) = 7 − 8x − x2 for x ∈ ℝ 

b. f(x) = 2 − 6x − 3x2 for x ∈ ℝ

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