Question

What is the product of $(a+b)$ and $7a^2$$b^2$?

• A. 7
• B. 7 + 7
• C. 7b + 7a
• D. 7ab + 7

Answer 1

The correct option is B

7 + 7

Required product = $(a+b)(7a^2$$b^2)$
Applying distributive property,
= $a(7a^2$$b^2)+b(7a^2$$b^2)$
= $7a^3$$b^2+7a^2$$b^3$.