Answer
$(9k+q)(2k-q)=18k^{2}-7kq-q^{2}$
Work Step by Step
$(9k+q)(2k-q)$
Evaluate the binomial product using the FOIL (First, Outer, Inner, Last) method and simplify by combining like terms:
$(9k+q)(2k-q)=18k^{2}-9kq+2kq-q^{2}=...$
$...=18k^{2}-7kq-q^{2}$
