Q. 123.5( 6 Votes )

# Product of 6a^{2} – 7b + 5ab and 2ab is

A. 12a^{3}b – 14ab^{2} + 10ab

B. 12a^{3}b – 14ab^{2} + 10a^{2}b^{2}

C. 6a^{2} – 7b + 7 ab

D. 12a^{2}b – 7ab^{2} + 10ab

Answer :

The multiplication is follows:

⇒ (6a^{2} – 7b + 5ab) × 2ab

=(6a^{2}× 2ab – 7b× 2ab + 5ab× 2ab)

=(12a^{3}b – 14ab^{2} + 10 a^{2}b^{2})

⇒ Result is as follows: (12a^{3}b – 14ab^{2} + 10 a^{2}b^{2})

Option (a) does not match to our solution.

Option (b) does match to our solution.

Option (c) does not match to our solution.

Option (d) does not match to our solution.

So, option (b) is correct answer.

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