Example

3(r+2s)=2t-4
a⋅(b-2)=3b
3(r+2s)=2t-4
a⋅(b-2)=3b

Question

$$\frac{(a-b)^{2}}{b^{2}-a^{2}}$$

Answer

$$(a-b)^2/((b+a)*(b-a))$$

Solution


Use Difference of Squares: \({a}^{2}-{b}^{2}=(a+b)(a-b)\).
\[\frac{{(a-b)}^{2}}{(b+a)(b-a)}\]
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