Asked by Fred
If f(x)= x^2 + 2x
What is f(-x)
What is f(1/a)
Thanks!
What is f(-x)
What is f(1/a)
Thanks!
Answers
Answered by
Reiny
f(-x) = (-x)^2 + 2(-x) = x^2 - 2x
f(1/a) = (1/a)^2 + 2(1/a) = 1/a^2 + 2/a
f(1/a) = (1/a)^2 + 2(1/a) = 1/a^2 + 2/a
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