Question

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Answer 1

1. 2m² - 4m = 0

2m (m - 2) = 0

m (m - 2) = 0

m = 0, m - 2 =0

m = 0, m = 2

2. 8x² - 4x = 0

4x (2x - 1) = 0

x (2x - 1) = 0

x = 0, 2x - 1 = 0

x = 0, x = 0,5

3. x² - 25 = 0

(x - 5) (x + 5) = 0

x - 5 = 0, x = -5