Evaluate
x^{2}+7x+5
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x^{2}+7x+5
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3x^{2}+2x-1-2x^{2}+5x+6
To find the opposite of 2x^{2}-5x-6, find the opposite of each term.
x^{2}+2x-1+5x+6
Combine 3x^{2} and -2x^{2} to get x^{2}.
x^{2}+7x-1+6
Combine 2x and 5x to get 7x.
x^{2}+7x+5
Add -1 and 6 to get 5.
3x^{2}+2x-1-2x^{2}+5x+6
To find the opposite of 2x^{2}-5x-6, find the opposite of each term.
x^{2}+2x-1+5x+6
Combine 3x^{2} and -2x^{2} to get x^{2}.
x^{2}+7x-1+6
Combine 2x and 5x to get 7x.
x^{2}+7x+5
Add -1 and 6 to get 5.
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y = 3x + 4
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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
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