readergirl12 one year ago What is the value of the expression when a = 3 and b = 2? 3a^3+2b^3 A. 78 B. 97 C. 135 D. 745

$3a^3+2b^3$ Thats what it looks like.

2. Nnesha

substitute a for 3 and b for 2 a=3 b=2

I dont understand...I've never been very good in math.. ._.

4. Nnesha

well given : a = 3 and b =2 so we can replace a for 3 and b for 2

5. Nnesha

$\huge\rm 3\color{ReD}{a}^3+2b^3$ . given is a =3 so i'm going to replace a for 3 $\huge\rm 3\color{ReD}{(3)}^3+2b^3$ . same with b

97..

7. Nnesha

exponents tells us how many times we should multiply the base so for example 4^3 would be 4*4*4