Question

even or odd?
y=x^3 - x

Answer 1

Even

Answer 2

y = x(x^2-1)

y = x(x+1)(x-1)

so if x is odd,

then odd(even)(even) = even.

if x is even, even(odd)even = even.

@Luis_Rivera its (-1)^3 - (-1) = -1 + 1 = 0 which is not treated as odd or even but u plug in any other values u get even number

Answer 3

y=x(x^2-1)=x(x+1)(x-1)

hence x can be 0,-1 or +1 and hence can be odd or even :D

Answer 4

sry it was x even then even(odd)(odd) which is actually even,

Answer 5

yep ^

Answer 6

@sriramkumar odd x even x odd = even.

3 x 2 x 3 = 18 = even. OK?

Y will hence be even for any value of x.

Answer 7

provided u take x > 0, any odd negative value for x and u get a negative even number actually

Answer 8

ohh... chill dude... you've hit the right target :D @luckythebest