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Question

The degree of the polynomial obtained when x32x2+23 is subtracted from 18x22x+x314 is ________.

A
3
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B
5
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C
2
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D
1
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Solution

The correct option is C 2
(18x22x+x314)((x32x2+23)
=(x3x3)(18x2(2x2))(2x)(2314)
=(16x22x9)
The degree of the resulting expression is 2, since the largest exponent is 2 in the resulting expression.

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