Answer: 24
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Explanation:
Everywhere you see an 'x', replace it with -2. Then use the order of operations PEMDAS to simplify.
Be careful to make sure you square all of -2 and not just 2 itself. You should have (-2)^2 = 4, not -2^2 = -4.
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f(x) = x^2 - 5x + 10
f(-2) = (-2)^2 - 5(-2) + 10
f(-2) = 4 - 5(-2) + 10
f(-2) = 4 + 10 + 10
f(-2) = 14 + 10
f(-2) = 24
