A workbook contains 1,213 problems. If 837 of the problems have been solved, how many unsolved problems are left in the workbook
2 answers:
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we are given
Firstly , we will factor numerator numerator
we can see that both numerator and denominator has common term as x+3
so, there will be hole at x+3=0
and we know that hole is a type of discontinuity
so, discontinuity would be at
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