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2x^2+x-1/5 =0 formula method |
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Answer» Step-by-step explanation: 10x²+5x-1=0 It is in the FORM ax²+bx+c=0 Here a=10 b=5 c=-1 X=-b+/-√b²-4ac/2a =-5+/-√25+40/20 =-5+/-√/15/20 X=-5+√15/20 or X=-5-√15/20 |
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