If x^2 - 4x + 4 = 0, then the value of x^2 is ________.
Hint 1: Recognize that is a perfect square: .
Hint 2: Set and solve for by taking the square root on both sides.
Hint 3: Square the value of to find .
Step 1 (Factor the Equation): We are given the quadratic equation:
This is a perfect square trinomial:
Step 2 (Substitute x into target): We want to find the value of . Substituting :
Step 3 (Conclusion): The value of is exactly 4.
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