Решите уравнение x(x+1)-(x-1)(x-1)=65

Question

Решите уравнение
x(x+1)-(x-1)(x-1)=65

Answer 1

Xˇ2 +x -xˇ2 +2x-1=65
3x=66, x =22

Answer 2

X^2 + x - ( x^2 - 2x + 1) =65
x^2 + x - x^2 + 2x - 1 - 65 = 0
3x = 66
x= 66/3
x = 22