Find the roots of the equation by the method of completing the square. a 2 x 2 -3abx+2b 2 =0
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=>a^2x^2-3abx +2b^2=0
=> a^2x^2-2abx+b^2-abx+b^2=0
=>(ax-b)^2- b (ax-b)=0
=>(ax-b){ax-b-b}=0
=> x=b/a, 2b/a
=> a^2x^2-2abx+b^2-abx+b^2=0
=>(ax-b)^2- b (ax-b)=0
=>(ax-b){ax-b-b}=0
=> x=b/a, 2b/a
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