हल करना 25a ^ 2 - 4b ^ 2 + 28bc - 49c ^ 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

$$25a^{2}-4b^{2}+28bc-49c^{2}$$