Evaluate
16\left(a-b\right)^{2}+a
Expand
16a^{2}-32ab+a+16b^{2}
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16\left(a^{2}-2ab+b^{2}\right)+a
Use binomial theorem \left(p-q\right)^{2}=p^{2}-2pq+q^{2} to expand \left(a-b\right)^{2}.
16a^{2}-32ab+16b^{2}+a
Use the distributive property to multiply 16 by a^{2}-2ab+b^{2}.
16\left(a^{2}-2ab+b^{2}\right)+a
Use binomial theorem \left(p-q\right)^{2}=p^{2}-2pq+q^{2} to expand \left(a-b\right)^{2}.
16a^{2}-32ab+16b^{2}+a
Use the distributive property to multiply 16 by a^{2}-2ab+b^{2}.
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