Question

Tìm x, biết :

x² -10x = - 25

Answer 1

x² - 10x + 25 = 0 

=> (x-5)² = 0

=> x =5

Answer 2

x^2-10x+25=0

=> (x-5)^2=0

=> x=5

Answer 3

x² - 10x + 25 = 0 

=> (x - 5)² = 0

=> x =5

Answer 4

x^2--10x=-25

x²-10x+25=0

x²-5x-5x+25=0

x(x-5)-5(x-5)=0

(x-5)²⁼⁰

^=>x-5=0=>x=5

Answer 5

x² -10x =-25 

x² -10x +25 =0

(x -5 )² = 0

x - 5 =0

x = 5

Vậy x = 5 là gtri cần tìm