How many rootes are in f(x)=(x^2-3x+1)^2 2 5 6 9

I'm terrible at math any here is appreciated.

He amount of carbon-14 present in animal bones t years after the animal's death is given by p(t)equals=upper p 0 e superscript negative 0.00012097 tp0e−0.00012097t. how old is an ivory tusk that has lost 26% of its carbon-14?

Find the area of the triangle shown 3 by 6