Evaluate
85
Factor
5\times 17
Quiz
Arithmetic
5 problems similar to:
3 \cdot 7 + 9 \cdot 7 + \frac { ( 5 \cdot 7 - 7 \cdot 4 ) } { 7 }
Share
Copied to clipboard
21+63+\frac{5\times 7-7\times 4}{7}
Multiply 3 and 7 to get 21. Multiply 9 and 7 to get 63.
84+\frac{5\times 7-7\times 4}{7}
Add 21 and 63 to get 84.
84+\frac{35-7\times 4}{7}
Multiply 5 and 7 to get 35.
84+\frac{35-28}{7}
Multiply 7 and 4 to get 28.
84+\frac{7}{7}
Subtract 28 from 35 to get 7.
84+1
Divide 7 by 7 to get 1.
85
Add 84 and 1 to get 85.
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}