Question

33. If sum of the squares of zeroes of the
quadratic polynomial
(x)=x^2- 4x+k is 20, then the value
of k is

Answer 1

Answer:

answer = -2

Step-by-step explanation:

α²+ β²=20

(α + β)²-2α β=20

(-b/a)²-2c/a=20

{-(-4/1)}²-2×k/1=20

16-2k=20

=>k= -2