14-05-2020
Mathematics

contestada

What is the special product of (7m - 9)(7m + 9)

Respuesta :

Wishing Wishing

14-05-2020

Answer:

49m²-81

Step-by-step explanation:

(7m-9)(7m+9)=49m²+63m-63m-81=49m²-81

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