Why is it ±3 and not 3?
I need full explaination.
I'll mark brainliest to the best.
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(x-y)² must be equal to 9 and square of -3 and 3 is 9
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0
it my means that x can be +3+y or -3+y
and also for y it can be +3-x or -3-x
it means there are two solutions of x and y
.....
and also for y it can be +3-x or -3-x
it means there are two solutions of x and y
.....
Anonymous:
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