To get \(b\) (the number inside the bracket), halve the coefficient (number in front) of the second term in the original equation ... the +11 to get the final answer \(y = {(x - 3)^2} ...
An alternative method to solve a quadratic equation is to complete ... then be solved by taking the square root of both sides. Solve \(x^2 + 6x - 10 = 0\) by completing the square.
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