erinmcdonald6673
16.01.2020 •
Mathematics
Find the product mentally. (ab + 3)2 ab2 + 6ab + 9 2ab + 6 a2b2 + 6ab + 9
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Ответ:
a^2 b^2 + 6ab + 9
Step-by-step explanation:
just math
Ответ:
P=2L+2(9)
Therefore:
2L+2(9)=68
2L+18=68
2L=68-18
2L=50
L=50/2
L=25
So the length is equal to 25 inches.