Answer:
- terms: 2x³, -9x
- coefficients: 2, -9
Explanation:
You want to identify the terms and coefficients in the expression 2x³-9x.
Terms
A polynomial is a sum of terms. Some of the terms may be negative. The minus sign is part of the term.
2x³ -9x = (2x³) +(-9x)
The terms are 2x³ and -9x.
Coefficients
The coefficient is the numerical multiplier of the variable(s) in a term. Some of the coefficients may be negative. The minus sign is part of the coefficient.
The coefficients are 2 and -9.
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Additional comment
The ideas of "term" and "coefficient" are actually somewhat flexible. They depend a bit on the context. In the above, the context is a polynomial with numerical coefficients.
For example, the coefficient of P in Prt is (rt). And we can refer to H(L+W) as a term in the expression 2(LW +H(L+W)).