Question

Solve (sqrt x + 5) - (sqrt x + 7) = -10

Answer 1

can u help?? @nickersia ?

Answer 2

if i help u than u have to help me

Answer 3

ok

Answer 4

√(x) + 5 = -7
Isolate x by first subtracting 5 from each sides
√(x) + 5 = -7
- 5 = - 5
√(x) (+ 0)= -12
√(x) = -12
To get rid of a square root sign you would have to square it. And you need to do this to both sides
(say if x was 4 the square root would be 2 and squared again would be 4)
√(x)^2 = (-12)^2
Since the square root and square cancel out you can simplify
x = (-12)^2
Negative times a negative is postive and 12 times 12 is 144
x = 144
Hope this helps :)

****BTW. I noticed from the other person's answer that this can be interpreted two ways since you neglected to include parentheses. I assumed it was √(x) + 5 = -7
If it is √(x + 5) = -7
You would again square both sides √(x + 5)^2 = (-7) ^2
Simplify
x+5=49
Subtract 5
x=44

Answer 5

44

Answer 6

so now help me

Answer 7

ok sure what is the question?

Answer 8

wait i saw the you only took the first part of my question the whole question is this \[\sqrt{x + 5} - \sqrt{x + 7} = -10\]

Answer 9

Helloo??/

Answer 10

@campbell_st can u help??

Answer 11

sorry the question doesn't seem to make a lot of sense to me, just wondering if there is something missing....

Answer 12

the question is this solve \[\sqrt{x + 5} - \sqrt{x + 7} = -10\]

Answer 13

according to wolframalpha it has no solutions... xD and, for example if you make it like:
sqrt(x+5)+10=sqrt(x+7) and then power it, you'll have
x+5+20sqrt(x+5)+100=x+7
sqrt(x+5)=-98/20 , so you'll be in the complex and i don't know if there's a solution over there

Answer 14

ok