Evaluate
8y^{2}+7xy-5x^{3}
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8y^{2}+7xy-5x^{3}
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8y^{2}+12yx-5x\left(x^{2}+y\right)
Use the distributive property to multiply 4y by 2y+3x.
8y^{2}+12yx-5x^{3}-5xy
Use the distributive property to multiply -5x by x^{2}+y.
8y^{2}+7yx-5x^{3}
Combine 12yx and -5xy to get 7yx.
8y^{2}+12yx-5x\left(x^{2}+y\right)
Use the distributive property to multiply 4y by 2y+3x.
8y^{2}+12yx-5x^{3}-5xy
Use the distributive property to multiply -5x by x^{2}+y.
8y^{2}+7yx-5x^{3}
Combine 12yx and -5xy to get 7yx.
Examples
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{ x } ^ { 2 } - 4 x - 5 = 0
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4 \sin \theta \cos \theta = 2 \sin \theta
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y = 3x + 4
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Matrix
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Simultaneous equation
\left. \begin{cases} { 8x+2y = 46 } \\ { 7x+3y = 47 } \end{cases} \right.
Differentiation
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integration
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Limits
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