Question

COMPLETE
the equation x2 - 9 = 0 has
real solution(s).

Answer 1

Explanation:

x^2-9 = 0

x^2 = 0+9

x^2=9

Take square root at both sides:

√x^2 =+/-√9

x =+/- 3

This equation has 2 real solutions, x=3 , x=-3....