हल करना a ^ 2 - 1 + 6(6 - 2a) 21112 | 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

$$a ^ { 2 } - 1 + b ( b - 2 a )$$