Algebra Examples

$\frac{s^{2} - t^{2}}{s + t}$

Step 1

Since both terms are perfect squares, factor using the difference of squares formula, $a^{2} - b^{2} = (a + b) (a - b)$ where $a = s$ and $b = t$ .

$\frac{(s + t) (s - t)}{s + t}$

Step 2

Cancel the common factor of $s + t$ .

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Step 2.1

Cancel the common factor.

$\frac{(s + t) (s - t)}{s + t}$

Step 2.2

Divide $s - t$ by $1$ .

$s - t$