Evaluate
\left(8x-3\right)\left(x+1\right)
Expand
8x^{2}+5x-3
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7x^{2}+7x+\left(x+1\right)\left(x-3\right)
Use the distributive property to multiply 7x by x+1.
7x^{2}+7x+x^{2}-3x+x-3
Apply the distributive property by multiplying each term of x+1 by each term of x-3.
7x^{2}+7x+x^{2}-2x-3
Combine -3x and x to get -2x.
8x^{2}+7x-2x-3
Combine 7x^{2} and x^{2} to get 8x^{2}.
8x^{2}+5x-3
Combine 7x and -2x to get 5x.
7x^{2}+7x+\left(x+1\right)\left(x-3\right)
Use the distributive property to multiply 7x by x+1.
7x^{2}+7x+x^{2}-3x+x-3
Apply the distributive property by multiplying each term of x+1 by each term of x-3.
7x^{2}+7x+x^{2}-2x-3
Combine -3x and x to get -2x.
8x^{2}+7x-2x-3
Combine 7x^{2} and x^{2} to get 8x^{2}.
8x^{2}+5x-3
Combine 7x and -2x to get 5x.
Examples
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{ x } ^ { 2 } - 4 x - 5 = 0
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y = 3x + 4
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699 * 533
Matrix
\left[ \begin{array} { l l } { 2 } & { 3 } \\ { 5 } & { 4 } \end{array} \right] \left[ \begin{array} { l l l } { 2 } & { 0 } & { 3 } \\ { -1 } & { 1 } & { 5 } \end{array} \right]
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
\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
Limits
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}