Find the solutions to the equation below. Check all that apply.
9x^2 - 81 = 0
A. X=-81
B. x= 9 C.
x= 3
D. x= -3
E. X=-9
F. x=1

Step-by-step explanation:

Use the quadratic formula to find the solutions.

−b±√b2−4(ac)2a-b±b2-4(ac)2a

Substitute the values a=9a=9, b=0b=0, and c=−81c=-81 into the quadratic formula and solve for xx.

x=±3x=±3

The final answer is the combination of both solutions.

x=3,−3x=3,-3

a .4y4

hope this !

the answer is b. 60. each interior angle in 120, so the exterior angle must be 60 in order to add up to 180

step-by-step explanation: