Example

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

Question

$$(a+b-e)^{2}$$

Expand

$a^{2}+2ab-2ea+b^{2}-2eb+e^{2}$

Evaluate

$\left(a+b-e\right)^{2}$

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