Hard algebra question! Please help?
#2p^2-3p-4=0# and #2q^2-3q-4=0 # (p does not equal to 0), find the value of #2p+2q# and #p^2q^2#
I tried this...the procedure should be ok...BUT check my maths anyway.
Have a look:
Quick way: You may use Vieta's Formulas
First notice that p and q have the exact same equation and thus will have the same solution,
Use the quadratic formula:
Sub in a =2, b = -3 and c = -4
q has the exact same equation and is thus have the same solution: