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गुणनखण्ड विधि से समीकरण को हल करें - `x^(2)-4x+13=0`

Answer» दिया है : ` x^(2)-4x+13=0`
`implies x^(2)-4x+4+9=0`
`implies (x-2)^(2)+9=0`
`implies (x-2)^(2)-9i^(2)=0`
`implies (x-2)^(2)-(3i)^(2) `
`implies (x-2-3i)(x-2+3i)=0`
`x-2-3i=0 implies x=2 +3i`
तथा ` x-2+3i=0 implies x=2-3i`


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