Question

 x^2-10x= -25

Answer 1

x² -10x +25 = 0

(x-5)² = 0

 x - 5 = 0

x = 5

Answer 2

\(x^2-10x=-25\)

\(\Leftrightarrow x^2-10x+25=0\)

\(\Leftrightarrow\left(x-5\right)^2=0\)

\(\Leftrightarrow x-5=0\)

\(\Leftrightarrow x=5\)

Answer 3

x² - 10x = -25

=> x² - 10x + 25 = 0

(x - 5)² = 0

x - 5 = 0

x = 0 + 5

x = 5

Vậy x = 5