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Question

If P(x)=6x3+18x2+27x+30 has one of the factor (2x2+2x+5), then using synthetic division find the other factor of P(x).

A
(x+6)
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B
(3x+6)
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C
(3x+3)
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D
(2x+3)
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Solution

The correct option is B (3x+6)

SInce 2x2+2x+5 is the factor of the polynomial P(x)=6x3+18x2+27x+30, so, to find the other factor of the given polynomial, we divide 6x3+18x2+27x+30 by 2x2+2x+5 as shown in the above image and we observe that the quotient is 3x+6 and the remainder is 0.

Hence, the other factor of P(x) is 3x+6.

966720_702492_ans_b2780489c1704f918c259e4e07147a58.jpg

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