Question

axsqare-ax+6 and xsq-x+b have common root -2 find a and b

Answer 1

Answer:

a=-1 and b=-2

Step-by-step explanation:

ax2-ax+b

sub x in place of x

so,a(-2)square-a(-2)+6=0

4a+2a+6=0

6a+6=0

a=-1

Ans also,

sub -2 in second equation

(-2)square-2+b=0

2+b=0

b=-2