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?

Quote:

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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?

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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