f(0)=f(2x+3)→2x+3=0→x=-3/2
f(5)=f(2x'+3)→2x'+3=5→x'=1
f(2x+3)=-5x→f(0)+f(5)=(-5)*(-3/2)+(-5)*(1)=5/2
2. 若 f(2x+3)=-5x,則 f(0)+ f(5)=? (A) -1 (..-阿摩線上測驗