Evaluate
9x+2y^{2}-9
Differentiate w.r.t. x
9
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4x-8+y^{2}+y^{2}-5+5x+4
Subtract 5 from -3 to get -8.
4x-8+2y^{2}-5+5x+4
Combine y^{2} and y^{2} to get 2y^{2}.
4x-13+2y^{2}+5x+4
Subtract 5 from -8 to get -13.
9x-13+2y^{2}+4
Combine 4x and 5x to get 9x.
9x-9+2y^{2}
Add -13 and 4 to get -9.
Examples
Quadratic equation
{ 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}