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Evaluate the function: f(x)=x2+2x, find f(−1)

1 Answer

4 votes

Answer:


f( - 1) = - 1

Explanation:


f(x) = {x}^(2) + 2x

Substitute x = -1 in the equation.


f( - 1) = {( - 1)}^(2) + 2( - 1) \\ f( - 1) = 1 - 2 \\ f( - 1) = - 1

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