Question

(a²-1) (a⁴+a²+1)-a+a при а=-27 помогите пж
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Answer 1

$\displaystyle\bf\\\underbrace{(a^{2} -1)(a^{4} +a^{2} +1)}_{a^{6} -1}\underbrace{-a+a}_{0}=a^{6} -1\\\\a=-27\\\\a^{6} -1=(-27)^{6} -1=387420489-1=387420488$