SOLUTION: Help me please, I need to find all intercepts of the function. f(x)=(x+2)^2(x-4)^2

Algebra ->  Real-numbers -> SOLUTION: Help me please, I need to find all intercepts of the function. f(x)=(x+2)^2(x-4)^2      Log On


   

Question 911883: Help me please, I need to find all intercepts of the function. f(x)=(x+2)^2(x-4)^2
Answer by MathLover1(20849) About Me  (Show Source):
You can put this solution on YOUR website!
to find all intercepts of the function f%28x%29=%28x%2B2%29%5E2%28x-4%29%5E2 set f%28x%29=0
+%28x%2B2%29%5E2%28x-4%29%5E2=0
+%28x%2B2%29%28x%2B2%29%28x-4%29%28x-4%29=0
if +x%2B2=0 => +x=-2 ... we have two of those
if +x-4=0 => +x=4 ... we have two of those

+graph%28+600%2C+600%2C+-10%2C+10%2C+-10%2C+100%2C%28x%2B2%29%5E2%28x-4%29%5E2%29+