Question

Calcule os produtos:

A)2×.(3×2-5×+4)=
B)Ab.(2ab-a+b+b2)=
C)(×2+×.(×3+2×2-4)=
D)(2×-4).(3×+1)=
E)(3×-5).(5×2-7×+11)=

Answer 1

A) 2×.(3ײ -5× +4)=
     6x² -10x² +8x

B) ab.(2ab -a +b +b²)=
    2a²b² -a²b +1b² +2ab²

C) (ײ +×.(׳ +2ײ -4)=
      x² + x⁴ +2x³ -4x

D) (2× -4).(3× +1)=
      6x² +2x -12x -4
      6x² -10x -4

E) (3×-5).(5ײ -7× +11)=
     15x³ -21x² +33 -25x² +35x -55 =
     15x³ -46x² +35x -22