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Question
Divide and write the quotient and the remainder.
(2m3 + m2 + m + 9) ÷ (2m − 1)
Solution
(2m3 + m2 + m + 9) ÷ (2m − 1)
m2 + m + 1
`2m - 1")"overline(2m^3 + m^2+m+9)`
2m3 - m2
- +
2m2 + m + 9
2m2 - m
- +
2m + 9
2m - 1
- +
10
So, quotient = m2 + m + 1 and remainder = 10.
Explanation:
- (2m − 1) × m2 = 2m3 − m2
- (2m − 1) × m = 2m2 − m
- (2m − 1) × 1 = 2m − 1
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