Question

What are the zero(s) of the function f(x) =4x2-36x. —————————————

X-9
?

A.x= -9
B.x=0
C.x=9
D.x= 0 and x = 9

Answer 1

B) x=0

Explanation:

`f(x)=(4x^2-36x)/(x-9)\\ \\0=(4x^2-36x)/(x-9)\\ \\0=(4x(x-9))/(x-9)\\ \\0=4x\\\\0=x\\\\x=0`

This is just a linear function in disguise, so there's only one solution

Answer 2

x=0 true

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