Question

x²-4x+4=0, x²+3x+p=0 have
common root, then p=?​

Answer 1

Answer:

p=-10

Step-by-step explanation:

x^2-2x-2x+4=0

x(x-2) -2(x-2) =0

(x-2) (x-2) =0

x-2=0

x=2

(2)^2+3×2+p=0 (both equations have same roots)

4+6+p=0

p=-10