x^+18x+65=0
D = 18^ - 4 * 1 * 65 = 324 - 206 = 64
sqrtD=8
x = (-18+8)/2 = -5
x= (-18-8)/2 = -13
otvet -5 i -13
x^+18x+65=0
D = 18^ - 4 * 1 * 65 = 324 - 206 = 64
sqrtD=8
x = (-18+8)/2 = -5
x= (-18-8)/2 = -13
otvet -5 i -13