Expand
3x^{2}+6x+3
Evaluate
3\left(x+1\right)^{2}
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3\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}.
3x^{2}+6x+3
Use the distributive property to multiply 3 by x^{2}+2x+1.
3\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}.
3x^{2}+6x+3
Use the distributive property to multiply 3 by x^{2}+2x+1.
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