exam Maths Puzzle Numerical Ability

It says to Factor completely:
x^3-5x^2+7x-35

Read Solution (Total 0)

exam Other Question

if p(t)=500t/2t^2+9 then Suppose the sets A and B are bases for a subspace W in R^n. Prove that neither set can contain more elements than the other.

Here is what I have figured out so far and I need h