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OpenStudy (anonymous):
What are the solutions of the equation?
|x| + 8 = 2
A) x = -2 or x = 2
B) x = -6 or x =6
C) x = -8 or z = 8
D) no solution
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OpenStudy (acxbox22):
subtract 8 from both sides
OpenStudy (acxbox22):
and tell me what you get
OpenStudy (anonymous):
0 and -6
OpenStudy (acxbox22):
no just tell me the equation after subtrating 8 from both sides
OpenStudy (anonymous):
|x| + 0 = -6
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myininaya (myininaya):
@KALIAN what did we just talk about before?
myininaya (myininaya):
can |x| this ever give us a negative output?
OpenStudy (acxbox22):
yes since the equation is now IxI=- is the equation and the absolute value of any number can never be negative what do you think is the answer?
OpenStudy (acxbox22):
*-6
OpenStudy (anonymous):
so the answer's B ?
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myininaya (myininaya):
|x|>0 or |x|=0
but |x| is never less than 0?
do you understand this?
OpenStudy (anonymous):
yes, |x| is greater or equal to 0 no matter what
myininaya (myininaya):
exactly
so how could |x| ever by -6 for any x?
OpenStudy (anonymous):
well that other person posted *-6 so i just asked. Wouldnt this one be no solution too ?
myininaya (myininaya):
yes no solution
|x| can never be -6 for any x
this sentence i just said translates to no solution
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OpenStudy (anonymous):
YAY !
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