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Brody made a mistake while factoring x^2 - 10x + 25. The correct factorization should be:
x^2 - 10x + 25 = (x - 5)^2
For 16c^2 - 9, Brody incorrectly factored it as (4c - 3)^2. The correct factorization is:
16c^2 - 9 = (4c + 3)(4c - 3)