Could you explain why the answer 125 was supposed to be negative while my answer 81 was correct?
1 answer:
Answer:
Step-by-step explanation:
Realize what (-5)^3 means
(-5)(-5)(-5)
25(-5)
-125
meanwhile
(-9)^2 is
(-9)(-9)
81
Basically a negative times a negative is always positive, but when a negative number is cubed (or raised to any odd exponent for that matter) the product will be negative.
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<span>the number will be 14. </span>
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Answer:
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Step-by-step explanation:
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Answer:
To prove???
Step-by-step explanation:
i have proved this
2.5*(3+x)；2.5x+7.5
7.5+2.5x
so 2.5x+7.5=2.5+7.5
