Question

F(x) = the quantity of 4 x squared minus 36 x, all over x minus 9?

Answer 1

f(x) = 4x, x≠9

Explanation:

4x^2 - 36x

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x-9

Factor out 4x in the numerator

4x(x - 9)

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x-9

We can cancel x-9 in the numerator and denominator, but we need to remember x cannot equal 9

f(x) = 4x, x≠9