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Mathematics, 20.08.2021 16:20 luv4appleallday

Need help with sum math! this question just confuses me-
In which of the following expressions is the coefficient of term "x" 1?
A. 2x² + x-9
B. 2x ²- 3x + 1
C. 3x² - x - 5
D. x² + 2x + 7

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Need help with sum math! this question just confuses me-
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