हल करना : the prod the . (- 2a)(- 5b)(4c) | 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

$$( - 2 a ) ( - 5 b ) ( 4 c )$$