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hammer [34]
3 years ago
8

I can't solve this equation pleas help!x^2+2x+8=0

Mathematics
1 answer:
tiny-mole [99]3 years ago
8 0
x^2+2x+8=0\\
x^2+2x+1+7=0\\
(x+1)^2=-7\\
x+1=-\sqrt{-7} \vee x+1=\sqrt{-7}\\
x=-1-\sqrt7 i \vee x=-1+\sqrt7 i
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