Answer:
x = -2
Step-by-step explanation:
DEF/3 = BAC
AC(7) x 3 = 21
-6
15/4 ÷ -5/8
Copy dot flip
15/4 * -8/5
Rewrite
15/5 * -8/4
3 * -2
The smallest zero is -3.
64pi cm^2
i think