Example

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

Question

$${ 1 }^{ 2 } +(3 \times 1-1)(3 \times 1+1+ { 1 }^{ 2 }$$

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