हल करना = -4 pm(-6) 2 + -4(-2) 2 -21 | 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

$$=\frac{-4\pm(-6)}{2}+\frac{-4(-2)}{2}-21$$