Common factor of the first two terms in the expression x2y+2xy+6y+9 is _____ .
A
2x
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B
x2
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C
xy
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D
y2x
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Solution
The correct option is Cxy Consider, x2y+2xy+6y+9 1st term = x2y = x×x×y 2nd term = 2xy = 2×x×y xy is common in both the terms Therefore, common factor of the first two terms in the expression x2y+2xy+6y+9 is xy .