Question

Solve using the square root method. Round to the nearest tenth if necessary.
x2 + 15 =0
A. {3.9}
B. {3.9, -3.9}
C. {7.5, -7.5}
D. no real solution

Answer 1

D

Answer 2

x^2=-15
x=+/-sqrt(-15)
no real solution because the square root of a negative number is not a real number