Question

2+(x-4)(x+4)=(x-1)*

Answer 1

2+(x-4)(x+4)=(x-1)²
2+x²-16= x²-2x+1
2x=15
x=7,5

Answer 2

2+(x-4)(x+4)=(x-1)* /+4
6+2x = x+3 -3
3+2x=x /:2x
3+x= 1/2 x

Answer 3

2+(x-4)(x+4)=(x-1)²
2+x²-16= x²-2x+1
2x=15
x=7,5