If x=2-P, then x^{3}+6 x p+p^{3} is equal to:

SSC CGL 7 06 2019 Shift 2 Paper

Question : 65 of 100

Marks: +1, -0

x=2-P,

then

x^{3}+6 x p+p^{3}

is equal to:

Solution:

\ x=2-P

x+P=2

cubing both sides

(x+P)^{3}=x^{3}+P^{3}+3 P x(P+x)

8=x^{3}+P^{3}+6 P x

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