simplify 9/(x^2)-1

Solution

simplify

\frac{9}{x ^{2}} - 1

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

Solution steps

\frac{9}{x ^{2}} - 1

Apply the fraction rule:

a + \frac{b}{c} = \frac{a c + b}{c}

= \frac{- 1 \cdot x ^{2} + 9}{x ^{2}}

Apply rule:

1 \cdot a = a

- 1 \cdot x^{2} = - x^{2}

= \frac{- x ^{2} + 9}{x ^{2}}

\frac{2 ( t ^{5} ) ^{3}}{6 t ^{7}}

\frac{1 + ( - 3 )}{2}

7 (3 - 2 k) + 9 (k - 5)

\frac{1}{y} d y

3 x (x^{2} - 2 x + 1) (x - 1) (x + 1)