Решите уравнение: (4x-5)(4x+5)-(4x-1)^2=9-2x

Question

Решите уравнение: (4x-5)(4x+5)-(4x-1)^2=9-2x

Answer 1

16x^2 - 25 - ( 16x^2 - 8x + 1) - 9 + 2x = 0
16x^2 - 25 - 16x^2 + 8x - 1 - 9 + 2x = 0
10x = 35
x = 3,5