+78 Consider x^2 + px + q = 0, where p and q are rational numbers. If one root of this equation is (radical 5) + 2, then the value o f p + q equals...
A. -5
B. -1
C. -2
E. 0
Thank you for helping! :D
+36915 2 + sqrt5 the other root would be 2 - sqrt5
SO the quadratic factored loks like this:
(x - (2+sqrt5) )(x-(2-sqrt5) ) if you multiply this out
x^2 -4x-1 now you can add p and q
