19a(19a +19) – (19а – 19)(19+ 19a). СРОЧНО!​

Question

19a(19a +19) – (19а – 19)(19+ 19a).

СРОЧНО!​

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Allison 1 год 2021-09-23T11:22:04+00:00 1 Answers 0 views 0

Answers ( )

  1. Adalyn
    0
    2021-09-23T11:23:33+00:00
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    Ответ:

    Объяснение:

    19a(19a +19) – (19а – 19)(19+ 19a) = 19²a² + 19²a – 19²a² + 19² = 19²(a+1) = 361(a+1)

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