Evaluate
\left(2x+3y\right)\left(7x+5y\right)
Expand
14x^{2}+31xy+15y^{2}
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14x^{2}+21xy+10yx+15y^{2}
Apply the distributive property by multiplying each term of 7x+5y by each term of 2x+3y.
14x^{2}+31xy+15y^{2}
Combine 21xy and 10yx to get 31xy.
14x^{2}+21xy+10yx+15y^{2}
Apply the distributive property by multiplying each term of 7x+5y by each term of 2x+3y.
14x^{2}+31xy+15y^{2}
Combine 21xy and 10yx to get 31xy.
Examples
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{ x } ^ { 2 } - 4 x - 5 = 0
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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 ) }
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Limits
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