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OpenStudy (anonymous):
x = 81
OpenStudy (anonymous):
thanks! @Shay17
OpenStudy (anonymous):
yw
OpenStudy (isaiah.feynman):
Vagueness..
OpenStudy (anonymous):
what do u mean? @Isaiah.Feynman
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OpenStudy (isaiah.feynman):
Is the square root covering the x alone?
OpenStudy (anonymous):
no it isnt its covering x-5
jagr2713 (jagr2713):
√x=5+4
Add 4 to 5 to get 9.
√x=9
To remove the radical on the left-hand side of the equation, square both sides of the equation.
(√x)2=(9)2
Simplify the left-hand side of the equation.
x=(9)2
OpenStudy (anonymous):
thanks that really helps too! @jagr2713
OpenStudy (isaiah.feynman):
@jagr2713 Wrong.
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jagr2713 (jagr2713):
what i got the answer thou
jagr2713 (jagr2713):
when you simplify you get 81
OpenStudy (isaiah.feynman):
So sqrt of 18 is 9 ?
jagr2713 (jagr2713):
where is 18 in the problem
OpenStudy (anonymous):
9^2 is 81
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OpenStudy (anonymous):
answer is 81. @jagr2713 gave a good explanation end of discussion
jagr2713 (jagr2713):
i did 5+4=9^2=81
OpenStudy (isaiah.feynman):
Wrong still. x = 21
The question is \[\sqrt{x-5}=4 \]
jagr2713 (jagr2713):
oh i did √x -5=4
OpenStudy (isaiah.feynman):
@Shay17 might wanna check your work again.
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OpenStudy (anonymous):
so its 21?
jagr2713 (jagr2713):
u thought it was a different problem sorry for the mistake