Answer:
-4 and -8
Step-by-step explanation:
Set each of the 2 factors = to 0 and solve for x:
x + 4 = 0 ↔ x = -4
x + 8 = 0 ↔ x = -8
The x-values -4 and -8 are the roots (zeros) of a polynomial whose factors are (x + 4) and (x + 8).
let an amount be a
increase an amount by 10% and then by 30%
= a*1.1 *1.3 = a*1.43
D 111.4 cm²