Evaluate
\left(\frac{x}{5}+10y\right)^{2}
Expand
4xy+\frac{x^{2}}{25}+100y^{2}
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0.04x^{2}+4xy+100y^{2}
Use binomial theorem \left(a-b\right)^{2}=a^{2}-2ab+b^{2} to expand \left(-0.2x-10y\right)^{2}.
0.04x^{2}+4xy+100y^{2}
Use binomial theorem \left(a-b\right)^{2}=a^{2}-2ab+b^{2} to expand \left(-0.2x-10y\right)^{2}.
Examples
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{ x } ^ { 2 } - 4 x - 5 = 0
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Matrix
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Simultaneous equation
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Differentiation
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integration
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Limits
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