Solve for x
x=\frac{1}{2}=0.5
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x≔\frac{1}{2}
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Quiz
Linear Equation
5 problems similar to:
x= \frac{ -5+ \sqrt{ ( { 5 }^{ 2 } )-(4)(2)(-3) } }{ 2(2) }
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x=\frac{-5+\sqrt{25-4\times 2\left(-3\right)}}{2\times 2}
Calculate 5 to the power of 2 and get 25.
x=\frac{-5+\sqrt{25-8\left(-3\right)}}{2\times 2}
Multiply 4 and 2 to get 8.
x=\frac{-5+\sqrt{25-\left(-24\right)}}{2\times 2}
Multiply 8 and -3 to get -24.
x=\frac{-5+\sqrt{25+24}}{2\times 2}
The opposite of -24 is 24.
x=\frac{-5+\sqrt{49}}{2\times 2}
Add 25 and 24 to get 49.
x=\frac{-5+7}{2\times 2}
Calculate the square root of 49 and get 7.
x=\frac{2}{2\times 2}
Add -5 and 7 to get 2.
x=\frac{2}{4}
Multiply 2 and 2 to get 4.
x=\frac{1}{2}
Reduce the fraction \frac{2}{4} 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}