Example

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

Question

$$(p+2q+2r)^{\wedge}3$$

Expand

$p^{2}+4pq+4pr+4q^{2}+8qr+4r^{2}$

Evaluate

$\left(p+2q+2r\right)^{2}$

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