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4y^{2}-9y+7
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4y^{2}-9y+7
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7y^{2}-7y+6-3y^{2}-2y+1
To find the opposite of 3y^{2}+2y-1, find the opposite of each term.
4y^{2}-7y+6-2y+1
Combine 7y^{2} and -3y^{2} to get 4y^{2}.
4y^{2}-9y+6+1
Combine -7y and -2y to get -9y.
4y^{2}-9y+7
Add 6 and 1 to get 7.
7y^{2}-7y+6-3y^{2}-2y+1
To find the opposite of 3y^{2}+2y-1, find the opposite of each term.
4y^{2}-7y+6-2y+1
Combine 7y^{2} and -3y^{2} to get 4y^{2}.
4y^{2}-9y+6+1
Combine -7y and -2y to get -9y.
4y^{2}-9y+7
Add 6 and 1 to get 7.
Examples
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{ x } ^ { 2 } - 4 x - 5 = 0
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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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