Question

(х-5)^2+30=х+25решите уравнение

Answer 1

х^2-10х+25+30=x+25
x^2-11x+30=0
D=(-11)^2-4*30=1
x1=(11-1):2=5
x2=(11+1):2=6

Answer 2

х^2 - 10х + 25 + 30 = х + 25
х^2 - 11х + 30 = 0
D = 121 - 4*1*30 = 121 - 120 = 1
х1 = (11+ 1):2 = 12:2 = 6
х2 = (11-1):2 = 10:2 = 5
Ответ: х= 6 ; х = 5