What is (x^2+3x-18)/(7x-21) ?

The solution to (x^2+3x-18)/(7x-21) is (x+6)/7

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simplify (x^2+3x-18)/(7x-21)

simplify

\frac{x ^{2} + 3 x - 18}{7 x - 21}

\frac{x + 6}{7}

Solution steps

\frac{x ^{2} + 3 x - 18}{7 x - 21}

Factor

x^{2} + 3 x - 18 : (x - 3) (x + 6)

= \frac{( x - 3 ) ( x + 6 )}{7 x - 21}

Factor

7 x - 21 : 7 (x - 3)

= \frac{( x - 3 ) ( x + 6 )}{7 ( x - 3 )}

Cancel the common factor:

x - 3

= \frac{x + 6}{7}

\frac{7 + 23 i}{- 3 - 5 i}

(2 a + 3)^{2}

(y - 9)^{2}

(- 7 - 9 i) + (- 6 - 7 i)

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