AP EAMCET2007MathematicsQuadratic Equation

If 3 x (x-a)(x-b) = 2 x-a + 1 x-b , then a: b is equal to

Options

A1: 2
B-2: 1
C1: 3
D3: 1

Correct answer

B. -2: 1

Step-by-step solution

aligned & Given, 3 x (x-a)(x-b) = 2 (x-a) + 1 (x-b) & 3 x=2(x-b)+1(x-a) aligned On comparing the coefficient of constant term, we get aligned & & -2 b-a & =0 & & a b & =- 2 1 & & a: b & =-2: 1 aligned

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