(x+2)-(x-3)(x+3)=
=x+2-(x^2-9)=
=x+2-x^2+9=
=x+11-x^2=
=-x^2+x+11
Объяснение:
(x+2)-(x-3)(x+3) = x+2-(x²-9) = x+2-x²+9 = -x²+x+11
(x+2)-(x-3)(x+3)=
=x+2-(x^2-9)=
=x+2-x^2+9=
=x+11-x^2=
=-x^2+x+11
Объяснение:
(x+2)-(x-3)(x+3) = x+2-(x²-9) = x+2-x²+9 = -x²+x+11