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30 March, 17:52

Choose the correct product of (5x - 11) ^2.

a. 25x^2 - 110x + 121

b. 25x^2 - 121

c. 25x^2 + 121

d. 25x^2 + 110x + 121

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Answers (2)
  1. 30 March, 18:20
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    A. 25x^2 - 110x + 121
  2. 30 March, 20:02
    0
    (5x - 11) ² = (5x) ² - 2·5x·11 + (11) ² = 25x² - 110x + 121

    (a - b) ² = a² - 2ab + b²

    a. 25x² - 110x + 121
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