Mathematics
10 Online
OpenStudy (ksmd13):
If x^2 = 30, what is the value of x?
±60
±15
±square root of 30
±square root of 15
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (xguardians):
What do you think the first step is?
OpenStudy (anonymous):
what is your opinion please ?
OpenStudy (ksmd13):
well 15 x 2 = 30 so it would be b or d right?
OpenStudy (ksmd13):
idk what to do next
OpenStudy (ksmd13):
@xGuardians @jhonyy9
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
x^2 = 30 make squerrot on both sides and so what will get ?
OpenStudy (anonymous):
squarroot -- sorry
OpenStudy (anonymous):
(x^2)^(1/2) = 30^(1/2) yes ?
OpenStudy (anonymous):
but you know that sqrtx^2 = +/- x yes ?
OpenStudy (anonymous):
so in the othjer side too in case of 30
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
other side - sorry
OpenStudy (ksmd13):
i'm really confused sorry
OpenStudy (ksmd13):
so i multiply ^1/2 on both sides?
OpenStudy (anonymous):
(x^2)^(1/2) = x^(2*(1/2)) = x^(2/2 = x
yes ?
no this expponent of 1/2 meaning the squareroot
OpenStudy (anonymous):
bc
sqrt(x) = x^(1/2)
you dont know it ?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (ksmd13):
oh ok
OpenStudy (anonymous):
so this mean that you understand it now sure ?
OpenStudy (anonymous):
ok
was my pleasure
good luck
bye bye