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2 x² - 6x - 8=0
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ʜʏ ᴍᴀᴛᴇ ʜᴇʀᴇ ɪs ʏᴏᴜʀ ᴀɴsᴡᴇʀ-
2x^2-6x-8=0
2x^2-4x-2x-8=0
2x(x-4)+2(x-4)=0
(2x+2)(x-4)
2x+2=0 or x-4=0
x=-2/2=-1 or x=4
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Answer:
-b±√b²-4ac
2a
6±√(-6)²-4(2)(8)
2(2)
6±√(36)-64)
2(2)
6±√-28
4
6+√-28
x= 4
6-√-28
x= 4
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