Question

3(x^2-2x-2)+x(6-3x) =
x ori x+x+x:x=
(2radical3ori x)^2 : (3x^2)

Answer 1

3 (x^2-2x-2)+x (6-3x)=
=3x^2-6x-6+6x-3x^2
=-6
x×x+x+x:x=
=x^2+x+1
(2radical3 ×x)^2:(3x^2)=
=(2x radical3)^2:(3x^2)
=(4x^2×3):(3x^2)
=(12x^2):(3x^2)
=4