What is a Coefficient?

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A coefficient is a number in front of a variable. For example, in the expression x2-10x+25, the coefficient of the x2 is 1 and the coefficient of the x is -10. The third term, 25, is called a constant.

If the expression were -x2+10x+25, the coefficient of the x2 would be -1, and the coefficient of the x would be 10.



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