3 years ago

If f(x)=x²+3x+5, what is f(3+h)?

1 answer:

8 0

You have to substitute 3+h for x, then work out the equation.

(3+h)^2 + 3(3+h) + 5 = 9 + 6h + h^2 + 9 + 3h + 5 =

h^2 + 9h + 23

Answer B.

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