which of the following is factor of 3x³+7x²
a)3x-7
b)3x+7
c)7x+3
d)7x-3
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Answer: b) 3x +7
Step-by-step explanation:
3x³+7x² = (3x + 7) ( x²) + 0
as the remainder is zero by factor theorum we can say that 3x+7 is a factor of 3x³+7x²
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