Solve for y
y=\frac{1}{4}=0.25
Graph
Share
Copied to clipboard
y^{2}-4y+4-y^{2}-4y-4=-2
To find the opposite of y^{2}+4y+4, find the opposite of each term.
-4y+4-4y-4=-2
Combine y^{2} and -y^{2} to get 0.
-8y+4-4=-2
Combine -4y and -4y to get -8y.
-8y=-2
Subtract 4 from 4 to get 0.
y=\frac{-2}{-8}
Divide both sides by -8.
y=\frac{1}{4}
Reduce the fraction \frac{-2}{-8} to lowest terms by extracting and canceling out -2.
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}