( 10 y ^ { 2 } - 3 x ^ { 2 } - 2 z ) - ( 6 x ^ { 2 } + 8
Evaluate
-9x^{2}+10y^{2}-2z-8
Expand
-9x^{2}+10y^{2}-2z-8
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10y^{2}-3x^{2}-2z-6x^{2}-8
To find the opposite of 6x^{2}+8, find the opposite of each term.
10y^{2}-9x^{2}-2z-8
Combine -3x^{2} and -6x^{2} to get -9x^{2}.
10y^{2}-3x^{2}-2z-6x^{2}-8
To find the opposite of 6x^{2}+8, find the opposite of each term.
10y^{2}-9x^{2}-2z-8
Combine -3x^{2} and -6x^{2} to get -9x^{2}.
Examples
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{ x } ^ { 2 } - 4 x - 5 = 0
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Matrix
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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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