Evaluate
4
Factor
2^{2}
Quiz
Arithmetic
5 problems similar to:
\frac{ (32 \times 5+7 \times { 40 }^{ 2 } ) }{ 40 } -7 \times 40
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\frac{160+7\times 40^{2}}{40}-7\times 40
Multiply 32 and 5 to get 160.
\frac{160+7\times 1600}{40}-7\times 40
Calculate 40 to the power of 2 and get 1600.
\frac{160+11200}{40}-7\times 40
Multiply 7 and 1600 to get 11200.
\frac{11360}{40}-7\times 40
Add 160 and 11200 to get 11360.
284-7\times 40
Divide 11360 by 40 to get 284.
284-280
Multiply 7 and 40 to get 280.
4
Subtract 280 from 284 to get 4.
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}