Example

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

Question

$$( a + b ) ( a - b ) =$$

Evaluate

$a^{2}-b^{2}$

Show Solution

Expand

$a^{2}-b^{2}$

Show Solution

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