Evaluate
-13
Factor
-13
Quiz
Arithmetic
5 problems similar to:
- \frac { 36 } { 4 } + \frac { 15 } { 5 } - \frac { 42 } { 6 } =
Share
Copied to clipboard
-9+\frac{15}{5}-\frac{42}{6}
Divide 36 by 4 to get 9.
-9+3-\frac{42}{6}
Divide 15 by 5 to get 3.
-6-\frac{42}{6}
Add -9 and 3 to get -6.
-6-7
Divide 42 by 6 to get 7.
-13
Subtract 7 from -6 to get -13.
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}