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How can we solve any equation by completing method?

Answer» To apply completing the square method, the quadratic equation must be in the form of\xa0ax2\xa0+ bx + c = 0Step 1 :In the given quadratic equation ax2\xa0+ bx + c = 0, divide the complete equation by a (coefficient of x2).\xa0If the coefficient of x2\xa0is 1 (a = 1), the above process is not required.\xa0Step 2 :Move the number term (constant) to the right side of the equation.Step 3 :In the result of step 2, write the "x" term as a multiple of 2.\xa0Examples :6x should be written as 2(3)(x).5x should be written as 2(x)(5/2).\xa0Step 4 :The result of step 3 will be in the form of\xa0x2\xa0+ 2(x)y = kStep 4 :Now add y2\xa0to each side to complete the square on the left side of the equation. Then,\xa0x2\xa0+ 2(x)y + y2 = k + y2Step 5 :In the result of step 4, if we use the algebraic identity(a + b)2 = a2\xa0+ 2ab + b2on the left side of the equation, we get\xa0(x + y)2 = k + y2Step 6 :Solve (x + y)2 = k + y2\xa0for x by taking square root on both sides.\xa0\xa0


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