How do you expand $(x-2)^2$ ?

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Answer 1 · 2016-09-17T08:44:30

$(x-2)^2=x^2-4x+4$

This is an example of the square of a difference, $(a-b)^2=a^2-2ab+b^2$ , where $a=x$ and $b=2$ .

Substitute your values into the equation.

$(x-2)^2=x^2-2(x)(2)+2^2$

Simplify.

$(x-2)^2=x^2-4x+4$

How do you expand (x-2)^2(x-2)^2?