Question

quadric polynomial for the zeroes 2,-1​

Answer 1

α+β = -b/a.

2+(-1)

2-1=1

αβ = c/a

2(-1)

-2

k(x²-(α+β)x+αβ)

= k(x²-x-2)

if k =1

then quadratic equation is x²-x-2....