If y = - 1 is a common root of the equation a * y ^ 2 + ay + 3 = 0 and y ^ 2 + y + b = 0 Then find a-b.
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Answer:
We are given the equation ay2+ay+3=0 and y2+y+b=0. It is mentioned that 1 is zero of both the equation. As 1 is zero of both the equations, it means that it must be satisfying both the equations.
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Step-by-step explanation:
since y=-1 is a root
a(1)²+a*1+3 = 0
(1)²+1+b = 0
2a+3 = 0
b+2 = 0
a = -3/2
b = -2
a-b = (-3/2)+2 = 1/2
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