Algebra Examples

(x^{2} + 3 x - 9) {(4 - x)}^{- 1}

$(x^{2} + 3 x - 9) {(4 - x)}^{- 1}$

Step 1

Rewrite the expression using the negative exponent rule

b^{- n} = \frac{1}{b^{n}}

$b^{- n} = \frac{1}{b^{n}}$ .

(x^{2} + 3 x - 9) \frac{1}{4 - x}

$(x^{2} + 3 x - 9) \frac{1}{4 - x}$

Step 2

Multiply

x^{2} + 3 x - 9

$x^{2} + 3 x - 9$ by

\frac{1}{4 - x}

$\frac{1}{4 - x}$ .

\frac{x^{2} + 3 x - 9}{4 - x}

$\frac{x^{2} + 3 x - 9}{4 - x}$