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Question

Finding the square root of the polynomial 9x4−6x3+7x2−2x+1.

A
|3x2x+1|
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B
|3x2x1|
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C
|3x2+x+1|
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D
|3x2+x1|
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Solution

The correct option is A |3x2x+1|
3x2x+13x29x46x3+7x22x+1 9x4 6x2x 6x3+7x2 6x3+ x2 6x22x+1 6x22x+1 6x22x+1 0

Square root of 9x46x3+7x22x+1 is |3x2x+1|.

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