Yesterday 20 employees in an office were absent. if these absentees constitutes 25% of the employees how many employees are ther
2 answers:
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Answer:
(5 + 3i)(5 − 3i) = 34
Step-by-step explanation:
The multiplication of two identical binomials who have different symbol, can be solved using the factoring case of a difference of squares:
So, in this case:
Remember that
So:
We replace on the polynomial: