SOLUTION: Leslie is a 6th grade student that is learning how to multiply signed numbers. She encounters the following problem:
“What is the sign of (-2)^15 * (-3)^10?”
Leslie reaso
Algebra.Com
Question 1191190: Leslie is a 6th grade student that is learning how to multiply signed numbers. She encounters the following problem:
“What is the sign of (-2)^15 * (-3)^10?”
Leslie reasons that the sign should be positive since we are multiplying two negative numbers. Is Leslie correct? If so, help her justify her reasoning. If not, provide a conceptual explanation that she can understand.
Found 2 solutions by Edwin McCravy, greenestamps:
Answer by Edwin McCravy(20059) (Show Source): You can put this solution on YOUR website!
Edwin
Answer by greenestamps(13200) (Show Source): You can put this solution on YOUR website!
No; Leslie is not right.
In this expression we are NOT multiplying TWO negative numbers -- we are multiplying 15+10=25 negative numbers.
Since the number of negative numbers being multiplied is odd, the sign of the product is negative.
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