Question

Find the product: 5ab × (3a – b + c)
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Answer 1

Step-by-step explanation:

We need to find product of (a+b) and (2a

2

−5ab+3b

2

)

Their product is a(2a

2

−5ab+3b

2

)+b(2a

2

−5ab+3b

2

)

=2a

3

−5a

2

b+3ab

2

+2a

2

b−5ab

2

+3b

3

=2a

3

+3b

3

−3a

2

b−2ab

2

Hence, the product of (a+b) and (2a

2

−5ab+3b

2

) is 2a

3

+3b

3

−3a

2

b−2ab

2

.