Evaluate
9y\left(7x+y\right)
Factor
9y\left(7x+y\right)
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0x^{2}+63xy+9y^{2}
Multiply 0 and 8 to get 0.
0+63xy+9y^{2}
Anything times zero gives zero.
63xy+9y^{2}
Anything plus zero gives itself.
9\left(0+7xy+y^{2}\right)
Factor out 9.
y\left(7x+y\right)
Consider 7xy+y^{2}. Factor out y.
9y\left(7x+y\right)
Rewrite the complete factored expression.
Examples
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{ x } ^ { 2 } - 4 x - 5 = 0
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Linear equation
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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