Question

if x=1 is a common root of ax²+ ax +2 = 0 and x²+ x + b = 0, then the valu of ab
is​

Answer 1

ax²+ ax +2 = 0

=>a + a + 2 = 0

=>2a = -2

=>a= -1

x²+ x + b = 0

=> 1+ 1 + b =0

=>b = -2

Therefore ab= (-1)*(-2)

                     =2

Answer 2

Answer:

hope it helpz.......