Q34:
What is the value of the integer n?
(1) n(n + 2) = 15
(2) (n + 2)n = 125
一直认为是B,为什么是C
vote for B
(1) -5*(-5+2)=15 3*5=15 n=3 or -5
(2) (3+2)^3=125 n=3
couldn't think up some other possible n, need to be updated, thx
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