(x-5)(x+1)=x^2-13 срочнооо

Question

(x-5)(x+1)=x^2-13
срочнооо

Answer 1

( X - 5 )( X + 1 ) = x^2 - 13
X^2 + X - 5x - 5 = x^2 - 13
- 4x = - 13 + 5
X = - 8 : ( - 4 )
X = 2

Answer 2

(x-5)(x+1)=x²-13
x²-5x+x-5=x²-13
x²-4x-5=x²-13
x²-x²-4x=-13+5
-4x=-8
4x=8
x=8/4
x=2