हल करना (2a + 3b) ^ 2 - 2(2a + 3b)(3b - a) + (3b - a) ^ 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

$$(2a+3b)^{2}-2(2a+3b)(3b-a)+(3b-a)^{2}$$