weeblordd
20.10.2020 •
Mathematics
Select from the drop-down menu to correctly identify the property shown.
−1.4+(−2.6+3.8)=(−1.4+(−2.6))+3.8
associative property
commutative property
opposite of a sum property
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Ответ:
Step-by-step explanation:
x^2 +2x -49278
(x-220.9887385)(x+222.9887385)
x= 220.988 or -222.988