Question

Решите уравнение (3x+1)^2-9x(x-2)=25

Answer 1

9x^2+6x+1-9x^2+18x=25
24x+1=25
24x+1-25=0
24x-24=0
X-1=0
X=1

Answer 2

(3x+1)² - 9x(x-2) = 25,

9х² + 6х + 1 - 9х² + 18х = 25,

24х = 25 - 1,

24х = 24,

х = 1