Question

F(x) = 2x² + 1 and g(x) = x² − 7, find (ƒ— g)(x).
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Answer 1

(f-g)(x) is equivalent to f(x) - g(x)

So that would be (2x²-5) - (x²-4x-8) = 2x² - x² + 4x + 8 - 5 = x² + 4x + 3

Hope this helps.

Explanation: