Multiply the following. $\left( - 9 x ^ { 5 } b ^ { 5 } \right) ( 8 x b )$
A) $- 69 x ^ { 6 } b ^ { 6 }$
B) $- 74 x ^ { 6 } b ^ { 5 }$
C) $- 72 x ^ { 5 } b ^ { 6 }$
D) $- 72 x ^ { 6 } b ^ { 6 }$

Question

Quizplus · Accepted Answer

To multiply these two expressions, we can use the distributive property. We need to multiply -9x^5b^5 by each term in (8xb) and then simplify.

-9x^5b^5 * 8x = -72x^6b^5 
-9x^5b^5 * b = -9x^5b^6

Putting these two terms together gives:

-72x^6b^5 - 9x^5b^6

So the correct answer is D.

Multiply the Following (−9x5b5)(8xb)\left( - 9 x ^ { 5 } b ^ { 5 } \right) ( 8 x b )(−9x5b5)(8xb)

Multiply the Following $\left( - 9 x ^ { 5 } b ^ { 5 } \right) ( 8 x b )$