factor -4k^2+2k-30

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1 Answer

-4x^2+2x-30=0

become +2x^2 -x +15=0

quadratik formula giv zeroes: 0.25 +-2.727178i (komplex variabels)

b^2-4ac=-119, root9119)=10.908712115 i

-b/2a=0.25
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