Решите уравнение! (6-x)^2-16=x^2-2x

Question

Решите уравнение! (6-x)^2-16=x^2-2x

Answer 1

( 6 - x)² - 16 = x² - 2x
( 6 - x)( 6 - x) - 16 = x² - 2x
36 - 6x - 6x + x² - 16 = x² - 2x
x² - 12x + 20 - x² + 2x = 0
- 10x = - 20
10x = 20
x = 20/10
x = 2

Answer 2

36+X*X-12X-16=X*X-2X
20=10X
X=2