Evaluate
20\sqrt{3}+60\approx 94.641016151
Quiz
Arithmetic
5 problems similar to:
40 \sqrt { 6 } \times \frac { \sqrt { 6 } + \sqrt { 2 } } { 4 }
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10\left(\sqrt{6}+\sqrt{2}\right)\sqrt{6}
Cancel out 4, the greatest common factor in 40 and 4.
\left(10\sqrt{6}+10\sqrt{2}\right)\sqrt{6}
Use the distributive property to multiply 10 by \sqrt{6}+\sqrt{2}.
10\left(\sqrt{6}\right)^{2}+10\sqrt{2}\sqrt{6}
Use the distributive property to multiply 10\sqrt{6}+10\sqrt{2} by \sqrt{6}.
10\times 6+10\sqrt{2}\sqrt{6}
The square of \sqrt{6} is 6.
60+10\sqrt{2}\sqrt{6}
Multiply 10 and 6 to get 60.
60+10\sqrt{2}\sqrt{2}\sqrt{3}
Factor 6=2\times 3. Rewrite the square root of the product \sqrt{2\times 3} as the product of square roots \sqrt{2}\sqrt{3}.
60+10\times 2\sqrt{3}
Multiply \sqrt{2} and \sqrt{2} to get 2.
60+20\sqrt{3}
Multiply 10 and 2 to get 20.
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}