Question

(х-5)²=16 решить уравнение

Answer 1

x^2-10x+25=16

x^2-10x+9=0

x1+x2=10

x1*x2=9

x1=9

x2=1

Answer 2

x^2-10x+25=16

x^2-10x+9=0

D=100-36=64

x1,2=(10+-√64):2

x1=9

x2=1