Question

Multiply
(7a+b) (2a2-3b2)​

Answer 1

Answer:

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

Answer 2

Answer:

14a^3-21ab^2+2a^2b-3b^3

Step-by-step explanation:

(7a+b)×(2a^2-3b^2)

=7a×(2a^2-3b^2)+b×(2a^2-3b^2)

=14a^3-21ab^2+2a^2b-3b^3