Д= 5^2+4*2*0,3=27,4х12= (5+- корень из 27,4)/ 0,6
0.3x2 + 5x - 2 = 0D = b2 - 4acD = 25 + 2.4 = 27.4 = (√27.4)2
Д= 5^2+4*2*0,3=27,4
х12= (5+- корень из 27,4)/ 0,6
0.3x2 + 5x - 2 = 0
x1,2 = -b ± √D 2a x1 = -5 + √27.4 0.6 x2 = -5 - √27.4 0.6 ответ: x1 = -5 + √27.4 ; x2 = -5 - √27.4 0.6 0.6D = b2 - 4ac
D = 25 + 2.4 = 27.4 = (√27.4)2