Question

I need help with a couple of square root problems..

Answer 1

How does \[\sqrt{(t + 5)_{}^{2}} equals t + 5\]

Answer 2

use = for equals :)

Answer 3

t = -5

Answer 4

i guess.

Answer 5

but \[\sqrt{(t + 12)_{?}^{2}} equals t + 12?\]

Answer 6

eh..

Answer 7

\[\sqrt{a^2} = |a|\]

For any a you want.

Answer 8

what is the difference between..\[\sqrt{(t + 5)_{}^{2}} = t + 5\]

Answer 9

and \[\sqrt{(t + 12)_{}^{2}} = |t + 12|\]?

Answer 10

The difference is that one has a 12 and one has a 5. Otherwise there's no difference. The one with a 5 should have absolute values though.

Answer 11

I guess what I meant, is why is the answer to one without absolute symbols, and the other with them?