Question

7)x=1 is a root of both equations x²+x+a=0 and bx²+bx+3=0 then the value of (ab) is *

1 point

2

3

4

5
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Answer 1

Answer:

3

Step-by-step explanation:

Answer 2

Answer:

3

Step-by-step explanation:

x=1 is a root

so, (1)^2+(1)+a=0 and b(1)^2+b(1)+3=0

or, a= -2 and b= -3/2

therefore, ab=3