Applicable to this and all other questions--
For any solution that involves two answers, type one
answer separated by a comma and then the other answer.
Solve the equation x2 = 81 by finding square
roots.
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OpenStudy (anonymous):
idk
OpenStudy (anonymous):
x^2 = 81 you actually mean this
sqrt(x^2)=sqrt(81) take sqrt of both sides
x= 9 or x=-9 both work
but since it says seperate answer by commas
it is 9,-9
OpenStudy (anonymous):
x^2 = 81 you actually mean this
sqrt(x^2)=sqrt(81) take sqrt of both sides
x= 9 or x=-9 both work
but since it says seperate answer by commas
it is 9,-9
OpenStudy (anonymous):
omg thank you
OpenStudy (anonymous):
u r welcome
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OpenStudy (anonymous):
hey she copied me :P
OpenStudy (anonymous):
hahahaha its ok lol
OpenStudy (anonymous):
no i looked it up in my mathematical term book ok so stop hatin