fchris
fchris
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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