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mendezmarco2004
04.07.2019 •
Mathematics
Find one value of xxx that is a solution to the equation (2x+3) 2 −6x−9=0
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Ответ:
(2x+3) ^2 −6x−9=0
(2x+3) (2x+3) −6x−9=0
Foil
4x^2 +6x+6x+9-6x-9=0
4x^2 +12x+9-6x-9=0
Combine like terms
4x^2 +6x=0
factor out 2x
2x(2x+3)=0
2x=0 2x+3=0
x=0 2x=-3
x=-3/2
Answer x=-3/2, 0
Ответ:
These acts all helped the countries form new states. These acts all helped to move frontiers further westward.
Explanation: