# Math Help - Quadratic Equations

1. ## Quadratic Equations

I just want to make sure that I am on the right track.

Solve.
19-x^2=0

This is what I did.

x^2-19=0

squared both of them.

x=the square root of 19

x=square root of 4.35

sorry i don't know how to make the square root on my computer.

but is this correct?

2. Originally Posted by getnaphd
I just want to make sure that I am on the right track.

Solve.
19-x^2=0

This is what I did.

x^2-19=0

squared both of them.

x=the square root of 19

x=square root of 4.35

sorry i don't know how to make the square root on my computer.

but is this correct?
it's not the square root of 4.35, you already took the square root of the 19

leave the answer in terms of a radical, say $x = \pm \sqrt {19}$