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Status: Waiting for your answers.

Using the partially completed work below, solve the equation x2 - 4x - 45 = 0 by completing the square.   x2 - 4x - 45 =   0 Step 1: x2 - 4x            =    Step 2: x2 - 4x + =    Step 3: (x - )2 =    Step 4: x - = +  Step 5: x = + Step 6: x1 x2 = = - = -5 + = 9