Răspuns :
a) (x+2)(x+3)=x²+2x+3x+6=x²+5x+6
b) (x-2)(x-3)=x²-2x-3x+6=x²-5x+6
c) (6x-1)(3x-3) =18x²-3x-18x+3=18x²-21x+3
b) (x-2)(x-3)=x²-2x-3x+6=x²-5x+6
c) (6x-1)(3x-3) =18x²-3x-18x+3=18x²-21x+3
a) (x+2)(x+3)= x²+ 3x+ 2x+ 6
= x²+ 5x+ 6
b) (x-2)(x-3)= x²- 3x-3x+ 6
= x²-5x+ 6
c) (6x-1)(3x-3)=18x²-18x-3x+ 3
=18x²- 21x+ 3
= x²+ 5x+ 6
b) (x-2)(x-3)= x²- 3x-3x+ 6
= x²-5x+ 6
c) (6x-1)(3x-3)=18x²-18x-3x+ 3
=18x²- 21x+ 3