Question

substract a²-5a+6 from a³-4a²+5-a​

Answer 1

Step-by-step explanation:

$( {a}^{3} - 4 {a}^{2} - a + 5) - ( {a}^{2} - 5a + 6)$

$= {a}^{3} - 4 {a}^{2} - {a}^{2} - a + 5a + 5 - 6$

$= {a}^{3} - 5 {a}^{2} + 4a - 1$

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