KAnneH51381 KAnneH51381 29-01-2024 Physics contestada I'm stuck on this one:f(x)=5t−9t2f′(x)=limh→05(h+a)−9(h+a)2−5a−9a2hf′(x)=limh→05(h+a)−9(h2+2ha+a2)−5a−9a2hf′(x)=limh→05h−9h2−18ha−18a2hI don't know where to go from here...