Answer:
Base = 144 Height = 6
Explanation:
First when we think about this question we know that the area was already divide by 2 since it's a triangle.
Area of triangle = b x h / 2
So knowing, we would do 432 x 2 / 6 which would give us 144.
Knowing that the base it 6x the height we would know that the base is 144 and height is 6.
I don't really know how to write the quadratic equation but I'm hoping these numbers might help you.