What is (x^2-7x+12)/(x^2-9) ?

The solution to (x^2-7x+12)/(x^2-9) is (x-4)/(x+3)

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simplify (x^2-7x+12)/(x^2-9)

simplify

\frac{x ^{2} - 7 x + 12}{x ^{2} - 9}

\frac{x - 4}{x + 3}

Solution steps

\frac{x ^{2} - 7 x + 12}{x ^{2} - 9}

Factor

x^{2} - 7 x + 12 : (x - 3) (x - 4)

= \frac{( x - 3 ) ( x - 4 )}{x ^{2} - 9}

Factor

x^{2} - 9 : (x + 3) (x - 3)

= \frac{( x - 3 ) ( x - 4 )}{( x + 3 ) ( x - 3 )}

Cancel the common factor:

x - 3

= \frac{x - 4}{x + 3}

x \times x^{3}

1 + \frac{1}{x - 1}

\frac{2 m}{n} - \frac{5 m}{3 n}

(1 + 7 i) (9 + 3 i) - (4 + 2 i)

15 \times 10

What is (x^2-7x+12)/(x^2-9) ?
The solution to (x^2-7x+12)/(x^2-9) is (x-4)/(x+3)