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Question

The degree of the polynomial f(x)=∣∣ ∣∣14201−2512x5x2∣∣ ∣∣ is

A
0
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B
1
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C
2
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D
4
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Solution

The correct option is C 2
By using sarrus rule:
1420141251212x5x212x
=10x2+20+40x20x210x+40f(x)=30x2+30x+60
Degree of f(x) is 2

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