Solve for x
x=\frac{6\sqrt{10}}{5}-1\approx 2.794733192
x=-\frac{6\sqrt{10}}{5}-1\approx -4.794733192
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\frac{440\left(x+1\right)^{2}}{440}=\frac{6336}{440}
Divide both sides by 440.
\left(x+1\right)^{2}=\frac{6336}{440}
Dividing by 440 undoes the multiplication by 440.
\left(x+1\right)^{2}=\frac{72}{5}
Reduce the fraction \frac{6336}{440} to lowest terms by extracting and canceling out 88.
x+1=\frac{6\sqrt{10}}{5} x+1=-\frac{6\sqrt{10}}{5}
Take the square root of both sides of the equation.
x+1-1=\frac{6\sqrt{10}}{5}-1 x+1-1=-\frac{6\sqrt{10}}{5}-1
Subtract 1 from both sides of the equation.
x=\frac{6\sqrt{10}}{5}-1 x=-\frac{6\sqrt{10}}{5}-1
Subtracting 1 from itself leaves 0.
Examples
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{ x } ^ { 2 } - 4 x - 5 = 0
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4 \sin \theta \cos \theta = 2 \sin \theta
Linear equation
y = 3x + 4
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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}