Question
Mathematics Question on Square Roots
If x=1 is a common root of ax2+ax+2=0 and x2+x+b=0, then the value of ab is
A
1
B
2
C
3
D
4
Answer
2
Explanation
Solution
The correct option is (B): 2
If x=1 is a common root of ax2+ax+2=0 and x2+x+b=0, then the value of ab is
1
2
3
4
2
The correct option is (B): 2