Hi, i really need to know how to solve these equations.

I have an exam tomorrow and would love someone to help me.

1)Factorise completely : 4P"cubed"Q-2PQ"squared"

Sorry about the cubed and squared, its just to the power or 3 and 2, didnt no how to type it on here

2) Solve Xsquared-3x-10=0

Please help me

Many thanks

Matt