An expression is defined as a set of numbers, variables, and mathematical operations. The correct option is C.
In mathematics, an expression is defined as a set of numbers, variables, and mathematical operations formed according to rules dependent on the context.
The complete question is:
Which of the following gives all of the coefficients of the algebraic expression -2x² + 17 -15x + 7xy?
-15
-15, -2
-15, -2, 7
-15, -2, 7, 17
A coefficient is a numerical term that is with a constant in an algebraic expression. Therefore, the coefficient in the given algebraic expression is -15, -2, and 7.
Hence, the correct option is C.
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