Jika fungsi f(x)=ax+5f\left(x\right)=ax+5f(x)=ax+5 dan (f∘f)(x)=9x−1\left(f\circ f\right)\left(x\right)=9x-1(f∘f)(x)=9x−1, maka nilai a2+5a+5=....a^2+5a+5=....a2+5a+5=....
555
999
000
888
−3-3−3