Question

State whether True or False.

Multiply: $-\frac{2}{3}{a}^7{b}^2$ and $-\frac{9}{4}a{b}^5$.

The answer is $\frac{3}{2}{a}^8{b}^7$.

• A. True
• B. False

Answer 1

The correct option is A True

$-\frac{2}{3}{a}^7{b}^2\times -\frac{9}{4}a{b}^5$
$=(-\frac{2}{3})(-\frac{9}{4})a^{7+1}{b}^{2+5}$
$=\frac{3}{2}{a}^8{b}^7$