SOLUTION: Let f(x)=(x−2/5)^2 . Find all values for the variable x , for which f(x)=0 .

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Question 1153060: Let
f(x)=(x−2/5)^2
. Find all values for the variable
x
, for which
f(x)=0
.
Answer by MathLover1(20849) About Me  (Show Source):
You can put this solution on YOUR website!

f%28x%29=%28x-2%2F5%29%5E2
find:
f%28x%29=0

%28x-2%2F5%29%5E2=0
%28x-2%2F5%29%28x-2%2F5%29=0....since both factors same, we will have one solution which has multiplicity 2
%28x-2%2F5%29=0=>x=2%2F5