X²-7x+6=0 найди дискремиеант

x^2 - 7x + 6 = 0 D = b^2 - 4ac = 49 - 24 = 25 = 5^2 x1 = ( 7 + 5) / 2 = 6 x2 = ( 7 - 5) / 2 = 1

х² - 7х + 6 = 0 D = √b²- 4 ac = √49-24 = √25 х1 = -b - √D / 2а = 7-5 /2 = 1 х2 =  -b + √D / 2а = 7+5 /2 = 6