हल करना (3a-1)(b+2)-(1-3a)(b-2)= | Equatix - Math Solver

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Example

3(r+2s)=2t-4

a⋅(b-2)=3b

3(r+2s)=2t-4

a⋅(b-2)=3b

Question

$$(3a-1)(b+2)-(1-3a)(b-2)=$$