10-1-227_DC vopombo out do stool autputa – InterviewSolution

1.	10-1-227_DC vopombo out do stool autputa
Answer» x²+2x-1=0x=-b+/-√(b²-4ac) -------------------- 2ax=-2+/-√(4-(4)(1)(-1) ------------------------ 2x=-2+/-√8 ------------ 2= 2(-1+/-√2) ----------- 2x=-1+/-√2

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