Evaluate
16\left(x+1\right)^{2}
Expand
16x^{2}+32x+16
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\left(4x+4\right)^{2}
Multiply 4x+4 and 4x+4 to get \left(4x+4\right)^{2}.
16x^{2}+32x+16
Use binomial theorem \left(a+b\right)^{2}=a^{2}+2ab+b^{2} to expand \left(4x+4\right)^{2}.
\left(4x+4\right)^{2}
Multiply 4x+4 and 4x+4 to get \left(4x+4\right)^{2}.
16x^{2}+32x+16
Use binomial theorem \left(a+b\right)^{2}=a^{2}+2ab+b^{2} to expand \left(4x+4\right)^{2}.
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