Factor
\left(x-\frac{-\sqrt{41}-13}{2}\right)\left(x-\frac{\sqrt{41}-13}{2}\right)
Evaluate
x^{2}+13x+32
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x^{2}+13x+32=0
Quadratic polynomial can be factored using the transformation ax^{2}+bx+c=a\left(x-x_{1}\right)\left(x-x_{2}\right), where x_{1} and x_{2} are the solutions of the quadratic equation ax^{2}+bx+c=0.
x=\frac{-13±\sqrt{13^{2}-4\times 32}}{2}
All equations of the form ax^{2}+bx+c=0 can be solved using the quadratic formula: \frac{-b±\sqrt{b^{2}-4ac}}{2a}. The quadratic formula gives two solutions, one when ± is addition and one when it is subtraction.
x=\frac{-13±\sqrt{169-4\times 32}}{2}
Square 13.
x=\frac{-13±\sqrt{169-128}}{2}
Multiply -4 times 32.
x=\frac{-13±\sqrt{41}}{2}
Add 169 to -128.
x=\frac{\sqrt{41}-13}{2}
Now solve the equation x=\frac{-13±\sqrt{41}}{2} when ± is plus. Add -13 to \sqrt{41}.
x=\frac{-\sqrt{41}-13}{2}
Now solve the equation x=\frac{-13±\sqrt{41}}{2} when ± is minus. Subtract \sqrt{41} from -13.
x^{2}+13x+32=\left(x-\frac{\sqrt{41}-13}{2}\right)\left(x-\frac{-\sqrt{41}-13}{2}\right)
Factor the original expression using ax^{2}+bx+c=a\left(x-x_{1}\right)\left(x-x_{2}\right). Substitute \frac{-13+\sqrt{41}}{2} for x_{1} and \frac{-13-\sqrt{41}}{2} for x_{2}.
Examples
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Linear equation
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Arithmetic
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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
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}