Evaluate
\left(2x+y\right)\left(3x+7y+3\right)
Expand
6x^{2}+17xy+6x+7y^{2}+3y
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6x^{2}+14xy+6x+3yx+7y^{2}+3y
Apply the distributive property by multiplying each term of 2x+y by each term of 3x+7y+3.
6x^{2}+17xy+6x+7y^{2}+3y
Combine 14xy and 3yx to get 17xy.
6x^{2}+14xy+6x+3yx+7y^{2}+3y
Apply the distributive property by multiplying each term of 2x+y by each term of 3x+7y+3.
6x^{2}+17xy+6x+7y^{2}+3y
Combine 14xy and 3yx to get 17xy.
Examples
Quadratic equation
{ x } ^ { 2 } - 4 x - 5 = 0
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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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