हल करना a ^ 2 - (2b + 4c) ^ 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

$$a^{2}-(2b+4c)^{2}$$