Question

(x-2)(x+2)=(x-7)²+3 помогите!

Answer 1

( X - 2 )( X + 2 ) = ( X - 7 )^2 + 3
X^2 - 4 = x^2 - 14x + 49 + 3
- 4 = - 14x + 52
14x = 56
X = 4

Answer 2

x2-4=x2-14x+49+3
x2-4-x2+14x-49-3=0
14x-56=0
x=56:14
x=4