This says is supposed to be 20 characters long. The actual question is the one in the picture. f(1)=?
1 answer:
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Given the expression:
Definition:
First, factor the -125. -125 comes from (-5)×(-5)×(-5) or (-5)^3.
Because if (-5)^2 = 25 then 25×(-5) again will be -125.
Since this is the cube root, we have to pull out 3 terms in one. There are 3 fives that we can take off and therefore,