Question

Solve using the square root method l. Round to nearest tenth if necessary. x^2 + 15 = 0

Answer 1

Do you know about complex or imaginary numbers?

Answer 2

In other words, have you seen \[\Large i=\sqrt{-1}\] before?

Answer 3

no

Answer 4

ok so there will be no real solutions because

\[\Large x^2 + 15 = 0\]

\[\Large x^2 +15-15= 0-15\]

\[\Large x^2 = -15\]

\[\Large x = \sqrt{-15}\]

Since you cannot take the square root of a negative number, there are no real solutions

Answer 5

and you leave it at that because you haven't learned about imaginary numbers yet

Answer 6

oh ok thanks

Answer 7

yw