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13-14x
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13-14x
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x^{2}-7x+5-\left(x^{2}+7x-8\right)
Use the distributive property to multiply x+8 by x-1 and combine like terms.
x^{2}-7x+5-x^{2}-7x+8
To find the opposite of x^{2}+7x-8, find the opposite of each term.
-7x+5-7x+8
Combine x^{2} and -x^{2} to get 0.
-14x+5+8
Combine -7x and -7x to get -14x.
-14x+13
Add 5 and 8 to get 13.
x^{2}-7x+5-\left(x^{2}+7x-8\right)
Use the distributive property to multiply x+8 by x-1 and combine like terms.
x^{2}-7x+5-x^{2}-7x+8
To find the opposite of x^{2}+7x-8, find the opposite of each term.
-7x+5-7x+8
Combine x^{2} and -x^{2} to get 0.
-14x+5+8
Combine -7x and -7x to get -14x.
-14x+13
Add 5 and 8 to get 13.
Examples
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{ x } ^ { 2 } - 4 x - 5 = 0
Trigonometry
4 \sin \theta \cos \theta = 2 \sin \theta
Linear equation
y = 3x + 4
Arithmetic
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}