Question

GIVING 20 POINT BRAINLIST IF YOU ANWSER THE FULL QUESTION!

Answer 1

Answer: x=-11  x=5

Step-by-step explanation:

(x+3)^2=72-8

(x+3) (x+3) = 64

x(x+3) +3(x+3) = 64

x^2 +3x+3x+9=64

x^2+6x+9=64

0=x^2+6x+9-64

0=x^2+6x-55

ok you look for two numbers that will multiply to -55 and also when added or subtracted it will give +6 and those 2 numbers where:

11*-5= -55    11 -5 =6

0=(x+11) (x-5)

x+11=0        x-5=0

x= -11           x= 5

YOU CAN GRAPH IT ON DESMOS TO FIND YOUR X-INTERCEPTS