Example

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

Question

$$( { x }^{ 2 } +2)(M-N)+2(M-N)$$

Evaluate

$\left(M-N\right)\left(x^{2}+4\right)$

Expand

$Mx^{2}-Nx^{2}+4M-4N$

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