What is the coefficient of the term of degree 9 in the polynomial in 5 + 7x^9 + 12x - 5x^7 + 3x^2?

1 Answer
Meave60
Jul 2, 2015

The coefficient of the term of degree 9 is 7, as in 7x^9.

Explanation:

The exponent on the variable determines its degree. 12x has a degree of 1, 3x^2 has a degree of 2, -5x^7 has a degree of 7, and 7x^9 has a degree of 9, The constant 5 has a degree of 0 because it does not have a variable. A polynomial should be written in descending order of degree.

7x^9-5x^7+3x^2+12x+5

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