1.
Classify the function as linear or quadratic and identify the quadratic, linear, and constant terms.

f(x) = (3x + 2)(−6x − 3)

A. linear function; linear term: −18x2; constant term: −6

B. quadratic function; quadratic term: 6x2; linear term: 24x; constant term: −6

C. linear function; linear term: −21x; constant term: −6

D. quadratic function; quadratic term: −18x2; linear term: −21x; constant term: −6