Question

Решите уравнение (4x-1)(4x+1)=16-1

Answer 1

(4х-1)(4х+1)=16-1; 16х^2-1=16-1; 16х^2=16; Х^2=1; Х1=-1, х2=1

Answer 2

(4x-1)(4x+1)=16-1
4x-1 * 4x+1=16-1
4x*4x=16-1+1+1
16x=16
x=16:16
x=1