SOLUTION: How do you do (X-3) squared?

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Question 477078: How do you do (X-3) squared?
Found 2 solutions by MathLover1, wilft1:
Answer by MathLover1(20849) About Me  (Show Source):
You can put this solution on YOUR website!

follow this rule: %28a-b%29%5E2=a%5E2-2ab%2Bb%5E2
%28x-3%29%5E2=x%5E2-2x%2A3%2B3%5E2=x%5E2-6x%2B9

Answer by wilft1(217) About Me  (Show Source):
You can put this solution on YOUR website!
(X-3) squared =
(x-3)(x-3)
x times x, then x times -3, then -3 times x, then -3 times -3
x^2 -3x -3x +9
then
x^2 -6x +9
its called a perfect square trinomial because you can factor it back to (x-3)^2