Identify Structure: Identify the structure of the quadratic equation.The given equation is in the standard quadratic form ax2+bx+c=0, where a=1, b=−8, and c=16.
Check Perfect Square: Check if the quadratic is a perfect square trinomial.A perfect square trinomial is of the form (ax)2±2abx+b2, which factors into (ax±b)2.Comparing x2−8x+16 with the perfect square trinomial structure, we see that (x)2−2(4)x+(4)2 matches, suggesting that the equation might factor into (x−4)2.
Factor Equation: Factor the quadratic equation.Since x2−8x+16 is a perfect square trinomial, it factors as (x−4)(x−4) or (x−4)2.
Solve for x: Solve the factored equation for x.Set the factored form equal to zero: (x−4)2=0.To find the value of x, take the square root of both sides: x−4=0.
Find Solution: Find the solution to the equation.Add 4 to both sides of the equation: x=4.
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