simplify (a²-2a²+4a-5)-(a³-8a+2a²+5)
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Step-by-step explanation:
(a^2-2a^2+4a-5)-(a^3-8a+2a^2+5)
=a^2-2a^2+4a-5-a^3+8a-2a^2-5
=-a^3-3a^2+12a-10
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