Evaluate
\left(4x-5y\right)^{2}
Expand
16x^{2}-40xy+25y^{2}
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\left(4x-5y\right)^{2}
Multiply 4x-5y and 4x-5y to get \left(4x-5y\right)^{2}.
16x^{2}-40xy+25y^{2}
Use binomial theorem \left(a-b\right)^{2}=a^{2}-2ab+b^{2} to expand \left(4x-5y\right)^{2}.
\left(4x-5y\right)^{2}
Multiply 4x-5y and 4x-5y to get \left(4x-5y\right)^{2}.
16x^{2}-40xy+25y^{2}
Use binomial theorem \left(a-b\right)^{2}=a^{2}-2ab+b^{2} to expand \left(4x-5y\right)^{2}.
Examples
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