7. Solve the equation using the quadratic formula. - √51 −6+ √51 3 brister 31 bns 27150 A. B. C. D. -12-√21 -12+√21 3 3 -6-√21 −6+√21 3 3 -6-√21 -√21 -6+√21 6 6 res besail lid eriT.163 3x²= - 12x - 5 = -12-6 -5 101 VIS2 19mc (ism wod wo 20

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