Solve for y
y=-\frac{x\left(6-x\right)}{4}
Solve for x (complex solution)
x=\sqrt{4y+9}+3
x=-\sqrt{4y+9}+3
Solve for x
x=\sqrt{4y+9}+3
x=-\sqrt{4y+9}+3\text{, }y\geq -\frac{9}{4}
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4y-\left(-8\right)=\left(x-4\right)\left(x-2\right)
Multiply both sides of the equation by 4.
4y+8=\left(x-4\right)\left(x-2\right)
The opposite of -8 is 8.
4y+8=x^{2}-6x+8
Use the distributive property to multiply x-4 by x-2 and combine like terms.
4y=x^{2}-6x+8-8
Subtract 8 from both sides.
4y=x^{2}-6x
Subtract 8 from 8 to get 0.
\frac{4y}{4}=\frac{x\left(x-6\right)}{4}
Divide both sides by 4.
y=\frac{x\left(x-6\right)}{4}
Dividing by 4 undoes the multiplication by 4.
Examples
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{ x } ^ { 2 } - 4 x - 5 = 0
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Matrix
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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
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Limits
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