Question

3-5-7-8*0,7(6a-a²)-0,9*733(a+m)

Answer 1

$3-5-7-8*0.7(6a-a^2)-0.9*733(a+m)=$$-9-33.6a+5.6a^2-659.7a-659.7m=5.6a^2-693.3a-659.7m-9$