Respuesta :
Answer:
x = ±3
Step-by-step explanation:
x^2-11=-2
Add 11 to each side
x^2-11+11=-2+11
x^2 = 9
Take the square root of each side
sqrt(x^2) = ±sqrt(9)
x = ±3
Answer:
x = ±3
Step-by-step explanation:
x^2-11=-2
Add 11 to each side
x^2-11+11=-2+11
x^2 = 9
Take the square root of each side
sqrt(x^2) = ±sqrt(9)
x = ±3