Question

2. If – 4 is a zero of the polynomial x2 - x - (2 – 2k), then the value of k is
(a) 3
(b) 9
(c) 6
(d) -9
3. The co-ordinates of the point where the line x - y = 5 cuts y - axis are​

Answer 1

Answer:

p(x) =x²-x- (2-2k)

x= -4

(-4) ²-(-4) -2+2k =0

16+4-2+2k =0

20-2 = -2k

18 = -2k

k = -9