Question

1.(X+2) (3-x)=
2.(x+2) totul la a 2

Answer 1

$1).(x+2)(3-x)=3x-x^2+6-2x=-x^2+x+6 \\ 2).(x+2)^2=x^2+2 \cdot x \cdot 2+2^2=x^2+4x+4$