jeydilopez18
jeydilopez18
19-03-2020
Mathematics
contestada
64-81d^2
How do I do this?
Respuesta :
Danboghiu66
Danboghiu66
19-03-2020
It is not clear what you want.
64=8²
81d²=(9d)²
64-81d²=8²-(9d)²=(8-9d)(8+9d)
Is this OK?
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