Expand
7x^{2}-14x+7
Evaluate
7\left(x-1\right)^{2}
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7\left(x^{2}-2x+1\right)
Use binomial theorem \left(a-b\right)^{2}=a^{2}-2ab+b^{2} to expand \left(x-1\right)^{2}.
7x^{2}-14x+7
Use the distributive property to multiply 7 by x^{2}-2x+1.
7\left(x^{2}-2x+1\right)
Use binomial theorem \left(a-b\right)^{2}=a^{2}-2ab+b^{2} to expand \left(x-1\right)^{2}.
7x^{2}-14x+7
Use the distributive property to multiply 7 by x^{2}-2x+1.
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