Frequent Questions about our Solver

The problem

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how do you solve this by completing the square

Answer provided by our tutors

Complete the square on the left side of the equation and balance this by adding the same value to the right side of the equation:

Take the square root on both sides of the equation:​

x - 1 = 5 follows one solution is x = 5+1, that is x1 = 6

x - 1 = -5 follows second solution is x = -5 + 1, that is x = -4

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