What is expand ((3+X)(3-X))/(X^2) ?

The solution to expand ((3+X)(3-X))/(X^2) is 9/(X^2)-1

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expand ((3+X)(3-X))/(X^2)

expand

\frac{( 3 + X ) ( 3 - X )}{X ^{2}}

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

Solution steps

\frac{( 3 + X ) ( 3 - X )}{X ^{2}}

Expand

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

= \frac{9 - X ^{2}}{X ^{2}}

Apply the fraction rule:

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

\frac{9 - X ^{2}}{X ^{2}} = \frac{9}{X ^{2}} - \frac{X ^{2}}{X ^{2}}

= \frac{9}{X ^{2}} - \frac{X ^{2}}{X ^{2}}

Apply rule

\frac{a}{a} = 1

\frac{X ^{2}}{X ^{2}} = 1

= \frac{9}{X ^{2}} - 1

\frac{d}{d t} ((t) k (t - 70))

483 \cdot \frac{1}{6}

ab c^{4} (a = - 3, b = 4, c = 2)

(3 x^{2} + y cos (x)) d x

\frac{( A x + B ) ( z ^{3} + C )}{B y + C}

What is expand ((3+X)(3-X))/(X^2) ?
The solution to expand ((3+X)(3-X))/(X^2) is 9/(X^2)-1