Evaluate
\frac{-27z-9}{25}
Expand
\frac{-27z-9}{25}
Share
Copied to clipboard
-0.6z-0.36+0.8\left(0.4z-z\right)
Use the distributive property to multiply -0.6 by z+0.6.
-0.6z-0.36+0.8\left(-0.6\right)z
Combine 0.4z and -z to get -0.6z.
-0.6z-0.36-0.48z
Multiply 0.8 and -0.6 to get -0.48.
-1.08z-0.36
Combine -0.6z and -0.48z to get -1.08z.
-0.6z-0.36+0.8\left(0.4z-z\right)
Use the distributive property to multiply -0.6 by z+0.6.
-0.6z-0.36+0.8\left(-0.6\right)z
Combine 0.4z and -z to get -0.6z.
-0.6z-0.36-0.48z
Multiply 0.8 and -0.6 to get -0.48.
-1.08z-0.36
Combine -0.6z and -0.48z to get -1.08z.
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}