What is factor x^2-9x-18 ?

The solution to factor x^2-9x-18 is (x-(3(sqrt(17)+3))/2)(x+(3(sqrt(17)-3))/2)

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Factor x^2-9x-18

factor

x^{2} - 9 x - 18

(x - \frac{3 ( 17 + 3 )}{2}) (x + \frac{3 ( 17 - 3 )}{2})

Solution steps

x^{2} - 9 x - 18

Solve

x^{2} - 9 x - 18 = 0 : x = \frac{9 + 3 17}{2}, x = \frac{9 - 3 17}{2}

Polynom can therefore be factored into

= (x - (\frac{9 + 3 17}{2})) (x - (\frac{9 - 3 17}{2}))

Refine

= (x - \frac{9 + 3 17}{2}) (x - \frac{9 - 3 17}{2})

Factor

9 + 317 : 3 (17 + 3)

= (x - \frac{3 ( 3 + 17 )}{2}) (x - \frac{9 - 3 17}{2})

Factor

9 - 317 : - 3 (17 - 3)

= (x - \frac{3 ( 3 + 17 )}{2}) (x - \frac{- 3 ( 17 - 3 )}{2})

Apply the fraction rule:

\frac{- a}{b} = - \frac{a}{b}

= (x - \frac{3 ( 3 + 17 )}{2}) (x - (- \frac{3 ( 17 - 3 )}{2}))

Apply rule

- (- a) = a

= (x - \frac{3 ( 17 + 3 )}{2}) (x + \frac{3 ( 17 - 3 )}{2})

24/12

81 x^{6}

8 x^{2}

\frac{6}{( 3 )}

h, V = p i r^{2} h

What is factor x^2-9x-18 ?
The solution to factor x^2-9x-18 is (x-(3(sqrt(17)+3))/2)(x+(3(sqrt(17)-3))/2)