Question

simplify the radical: radical 144

Answer 1

\[\sqrt{12 \cdot 12}=\sqrt{12^2}=?\]

Answer 2

so i would be radical 12 or just plain 12

Answer 3

Remember that taking the square root "undoes" squaring. So whatever you square to get 144 would be the answer to the square root of 144

Answer 4

Remember that taking the square root "undoes" squaring. So whatever you square to get 144 would be the answer to the square root of 144

Answer 5

my options are
A. radical 12
B. 12
C. 12 radical 12

Answer 6

Which one do you think, sweetheart?

Answer 7

im thinking A or B im not sure

Answer 8

\[\sqrt{x^2}=x\]as mertsj said, radicals 'undo' the squares

Answer 9

And that of course if x>=0 which it is here :)

Answer 10

Think like this: addition and subtraction are inverse operations. If I start with 3 add 5 and then subtract 5 I end up right back where I started with 3.
Squaring and taking the square root are inverse operations. If I start with 3 and square it, I will get 9. Then if I take the square root, I will end up with 3 again.