Question

find the quadratic polynomial whose zeros are 2 under root 5 and -7 under root 5​

Answer 1

alpha + beta =2/root5+ -7/root5

=-5

alpha*beta=2/root2* -7/root5

=-14/root10

the needed polynomial is

x²-(alpha+beta)x+alpha into beta

x²-(-5x)+-14/root10