Evaluate
3\left(8n-5\right)^{2}
Expand
192n^{2}-240n+75
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3\left(8n-5\right)^{2}
Multiply 8n-5 and 8n-5 to get \left(8n-5\right)^{2}.
3\left(64n^{2}-80n+25\right)
Use binomial theorem \left(a-b\right)^{2}=a^{2}-2ab+b^{2} to expand \left(8n-5\right)^{2}.
192n^{2}-240n+75
Use the distributive property to multiply 3 by 64n^{2}-80n+25.
3\left(8n-5\right)^{2}
Multiply 8n-5 and 8n-5 to get \left(8n-5\right)^{2}.
3\left(64n^{2}-80n+25\right)
Use binomial theorem \left(a-b\right)^{2}=a^{2}-2ab+b^{2} to expand \left(8n-5\right)^{2}.
192n^{2}-240n+75
Use the distributive property to multiply 3 by 64n^{2}-80n+25.
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