Question Number 202633 by hardmath last updated on 30/Dec/23
Answered by cortano12 last updated on 31/Dec/23
$$\:\mathrm{5}\clubsuit\mathrm{6}\:=\:\mathrm{5}−\mathrm{6}=−\mathrm{1} \\ $$$$\:\left(\mathrm{5}\clubsuit\mathrm{6}\right)\clubsuit\mathrm{9}\:=\:−\mathrm{1}\clubsuit\mathrm{9}\:=\:−\mathrm{1}−\mathrm{9}=−\mathrm{10} \\ $$
Commented by hardmath last updated on 31/Dec/23
$$\mathrm{thankyou}\:\mathrm{professor}, \\ $$$$ \\ $$Answers were given incorrectly?