SOLUTION: What are the zero(s) of the function f(x) = the quantity of 4 x squared minus 36 x, all over x minus 9? x = -9 x = 0 x = 9 x = 0 and x = 9

Algebra ->  Rational-functions -> SOLUTION: What are the zero(s) of the function f(x) = the quantity of 4 x squared minus 36 x, all over x minus 9? x = -9 x = 0 x = 9 x = 0 and x = 9      Log On


   

Question 914196: What are the zero(s) of the function f(x) = the quantity of 4 x squared minus 36 x, all over x minus 9?
x = -9
x = 0
x = 9
x = 0 and x = 9
Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!

f%28x%29+=%28+4x%5E2+-+36x%29%2F+%28x+-+9%29 factor

f%28x%29+=4x%28+x+-+9%29%2F+%28x+-+9%29

f%28x%29+=4x%28cross%28%28+x+-+9%29%29%29%2F+cross%28%28x+-+9%29%29

f%28x%29+=4x

solution:
f%28x%29=0 if x=0
answer:x=0