Question

limit as (x to-infinity) (x^2-x^4).

Answer 1

Factor x^4 out and then trying to take the limit as x-> -infinity.

Answer 2

(-infinity)^4 ((1/(-infinity )^2 - 1 )
i got this how we ge - infinity as answer ? as - infinity to the power 4 should be + infinity

Answer 3

Inside the parenthesis you are left with a negative 1 which when multiplied by positive infinity outside the parenthesis will give negative infinity.