mohon bantuannya***********************

f(x) = (2x- x^2 + 7x^-1)^2017
f(x^2) = (2x^2 - x^4 + 7x^-2)^2017
f(x^3) = (2x^3 - x^6 + 7x^-3)^2017
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f(x^1554) = (2x^1554 - x^3108 + 7x^-1554)^2017

f(x^1554) = (2x^(1554×2017) - x^( 3108×2017 ) + 7^2017x^(-1554×2017)

f(x^1554) = 2x^3.134.418 - x^6.268.836 +
7^2017x^-3.134.418