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22 November, 19:34

What is the product?

(9t - 4) (-9t-4)

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Answers (2)
  1. 22 November, 19:43
    0
    Answer:-81t^2 + 16

    Step-by-step explanation:

    (9t-4) (-9t-4)

    9tx-9t + 9tx-4 + - 4x-9t + - 4x-4

    -81t^2-36t+36t+16

    -81t^2+16
  2. 22 November, 20:02
    0
    -81t to the second + 16
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