Question

Solve the equation: √x+4=7

Answer 1

hey @charlieberzak , since I taught you some tips. Can you show me some solutions, you've got from this? :D

Answer 2

\[\sqrt{x+4}=7\]

Answer 3

thats how is should look like lol

Answer 4

soo i should bring something to the other side?

Answer 5

thats what u said last time...

Answer 6

No because it is also a part of the exponent. You square first the whole equation before transposing. :)

Answer 7

O_o

Answer 8

just square both side and separate variable and numbers

Answer 9

As what we've said, you need to cancel the sqrt sign right? Therefore, what should you do first?

Answer 10

ummm find x? which i think would be 3?

Answer 11

No, square 7 first. Before subtracting 4. :)

Answer 12

rootx = 7-4
x square = 3 square , x = 9

Answer 13

what do you mean by square?

Answer 14

multiply 7 by itself.

Answer 15

\[x ^{2}\]

Answer 16

7*7 = 49, is that what you mean?

Answer 17

\[\sqrt{x} = 7 - 4\]

Answer 18

the answer is 45!

Answer 19

\[\sqrt{x} = 3\]

Answer 20

Yes.

Answer 21

O.O

Answer 22

Yes. You're right @charlieberzak , @JOELMATHEWS1234 maybe you misinterpreted the question.

Answer 23

\[x = 9\]

Answer 24

give the full question

Answer 25

it's written in one of the comments.

Answer 26

oh , okay

Answer 27

\[\sqrt{x + 4} = 7\]

Answer 28

\[x + 4 = 7^{2}\]

Answer 29

\[x = 49 -4 =45\]