Question

[Fan + Medal]
What is the solution of the equation?

Answer 1

what equation

Answer 2

\[\sqrt{x+10}^{-9} = -7\]

Answer 3

are you solving for x?

Answer 4

Yes. The choices for answers are: -6, 4, 14, -8.

Answer 5

I might be able to help

Answer 6

wait is that -9?

Answer 7

up there?

Answer 8

Yes

Answer 9

Okay. So, you have the -9 in the square root of the equation, that seems to be the tricky part

Answer 10

Take that and add it to -7 and tell me what you get

Answer 11

Take the -9 and add it to -7?

Answer 12

yes --> -7 + 9 =

Answer 13

So it would be 2?

Answer 14

Yes! excellent. So now we have \[\sqrt{x+10} = 2\]
Right?

Answer 15

Yes

Answer 16

Okay, so what is the opposite of a square root?

Answer 17

such as, opposite of multiply is divide

Answer 18

The square? How 81 is the square and the squareroot is 9?

Answer 19

No. Okay, so you have the square root of x + 10 = 2
we want to do the OPPOSITE of square root --- > this is exponents, such as squaring! :) It will get rid of the radical.

Answer 20

So then we will have x + 10 = 2 ^ 2

Answer 21

This then turns into x + 10 = 4

Answer 22

Now, solve for x. :-)

Answer 23

Ohhh. Okay I get it now! So -6?

Answer 24

Yes!

Answer 25

Alright, do you think you could help on another one? :)

Answer 26

Very well possibly! I can try. Can you start a new thread and tag me though? This is getting long and is lagging. :P