Help me solve these please?

Factor each polynomial

1. 25a^2 - 49b^2

2. x^3 - 2x^2y + xy^2

Answer:
1) (5a-7b)(5a+7b)
1. 25a^2 - 49b^2 = (5a-7b)(5a+7b)

2, x³ - 2x²y + xy² = x(x² - 2xy + y²) = x(x-y)²

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