Example

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

Question

$${ \left(2-pq+1 \right) }^{ 2 }$$

Evaluate

$\left(3-pq\right)^{2}$

Expand

$9+\left(pq\right)^{2}-6pq$

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