If x = 1 is a common root of the equations ax2 + ax+3 =0 and x2 +x +b =0, then ab =
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196
Answer:
The answer is 3.
Where, a=-3/2 and b=-3
Step-by-step explanation:
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5
Answer:
The value of ab = 3
Step-by-step explanation:
Given equation are ax2 + ax+3 =0 and x2 +x +b =0
x=1 is the common root of the equations.
Substituting x value in equations.
a(1)^2 + a(1) + 3 = 0
a + a + 3 = 0
2a + 3 = 0
a = - 3/2
Substituting x value in x2 +x +b =0
(1)^2 + 1 + b = 0
2 + b = 0
b = - 2
Substituting a and b values in ab
ab = (-3/2)*(-2) = 3
Therefore ab = 3
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