Evaluate
\left(x-1\right)\left(5x-1\right)
Expand
5x^{2}-6x+1
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9x^{2}-6x+1-4x^{2}
Use binomial theorem \left(a-b\right)^{2}=a^{2}-2ab+b^{2} to expand \left(3x-1\right)^{2}.
5x^{2}-6x+1
Combine 9x^{2} and -4x^{2} to get 5x^{2}.
9x^{2}-6x+1-4x^{2}
Use binomial theorem \left(a-b\right)^{2}=a^{2}-2ab+b^{2} to expand \left(3x-1\right)^{2}.
5x^{2}-6x+1
Combine 9x^{2} and -4x^{2} to get 5x^{2}.
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