CAT
Exam
Numerical Ability
(2+x+x^2+x^3)^n = P0+P1x+P2x^2+......+P9x^9 where n,P0,P1,P2...P9 are all integers. find P1+P2+P3....+P8
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CAT Other Question
One root of x2 +kx – 8 = 0 is square of the other, then, the value of k is-
Options:
2,8,-8,-2
What is x +y