Question

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

• A. 7$a^2$$b^2$
• B. 7$a^3$$b^2$ + 7$a^2$$b^3$
• C. 7$a^2$b + 7a$b^2$
• D. 7ab + 7$a^2$$b^2$

Answer 1

The correct option is B

7$a^3$$b^2$ + 7$a^2$$b^3$

Using distributive property,

7$a^2$$b^2$ $(a+b)$ = 7$a^3$$b^2$ + 7$a^2$$b^3$.