Expand
15x^{2}+47x+28
Evaluate
\left(3x+7\right)\left(5x+4\right)
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15x^{2}+12x+35x+28
Apply the distributive property by multiplying each term of 3x+7 by each term of 5x+4.
15x^{2}+47x+28
Combine 12x and 35x to get 47x.
15x^{2}+12x+35x+28
Apply the distributive property by multiplying each term of 3x+7 by each term of 5x+4.
15x^{2}+47x+28
Combine 12x and 35x to get 47x.
Examples
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{ x } ^ { 2 } - 4 x - 5 = 0
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Linear equation
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Matrix
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Simultaneous equation
\left. \begin{cases} { 8x+2y = 46 } \\ { 7x+3y = 47 } \end{cases} \right.
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\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integration
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Limits
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