Question

On subtracting 20a4 + 12a - 25 from
17 a4 -2a3 - 16, we get​

Answer 1

Step-by-step explanation:

$17 {a}^{4} - 2 {a}^{3} - 16 - 20 {a}^{4} - 12a + 25$

$= - 3 {a}^{4} - 2 {a}^{3} - 12a + 9$

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