(x-2)(x+2)-(x-5) упростить

Question

(x-2)(x+2)-(x-5) упростить

Answer 1

(x-2)(x+2)-(x-5)=x²-4-x+5=x²-x+1

Answer 2

(х-2)(х+2) - (х-5) =
= х^2 - 4 - х + 5 =
= х^2 - х + 1