Respuesta :
Answer:
2nd choice: x=4 and x=-4
Step-by-step explanation:
x^2 - 16 = 0 can be simplified to (x-4)(x+4)=0
x-4 = 0 so x = 4
and x + 4 = 0 so x = -4
Answer:
2nd choice: x=4 and x=-4
Step-by-step explanation:
x^2 - 16 = 0 can be simplified to (x-4)(x+4)=0
x-4 = 0 so x = 4
and x + 4 = 0 so x = -4