cube of a Negative Number always
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cube of a negative no. is always negative
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Answer:
When working with exponents, the only way to get negative results is to raise a negative number to an odd power. Since cubing a number means raising it to the
3
rd
power—which is odd—the cube roots of negative numbers must also be negative.
This applies to perfect cubes and estimating other cube roots. Let's look at a perfect cube example because it's easier to write out. We are going to find
3
√
−
64
.
−
4
=
(
−
4
)
1
is negative
−
4
×
−
4
=
(
−
4
)
2
=
16
is positive
−
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