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22 November, 04:47

In the equation, p and t are constants. What is the value of p? 4x2 - 9 = (px + t) (px - t) A) 2 B) 3 C) 4 D) 9

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  1. 22 November, 08:13
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    A) 2

    Step-by-step explanation:

    4x² - 9 = (px + t) (px - t)

    Using formula a² - b² = (a-b) (a+b)

    4x² - 9 = (2x) ² - 3² = (2x - 3) (2x+3),

    so

    (px + t) (px - t) = (2x - 3) (2x + 3).

    We can see that p = 2, and t = 3.
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