(a^2n-7a^n+10) (a^n-1)

Jawab:
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(a^2n−7a​^n +10)(a​^n−1)
a^2n(a^n-1)-7a^n(a^n-1)+10(a^n-1)
a^3n-a^2n-7a^n(a^n-1)+10(a^n-1)
a^3n-a^2n-(7a^2n-7a^n)+10(a^n-1)
a^3n-a^2n-(7a^2n-7a^n)+10a^n-10
a^3n-a^2n-7a^2n+7a^n+10a^n-10
a^3n+(-a^2n-7a^2n)+(7a^n+10a^n)-10
a^3n-8a^2n+17a^n-10

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