23/05 8º Matemática

Resolva no seu caderno

IV)  Identifique os casos de fatoração e fatore as expressões algébricas:

1) 4a + 4b =                                                   2) 10ax – 25ay =       

3) 15x³y – 11x²z =                                         4) 6xy² – 3x²y + 12x³yz =     

5) 6xy + 10ab =                                             6) 12xy – 18y =

7) mn + my =                                                 8) 28ab – 21ac – 14ad =       

9) 3x² + 2y²x + 4y² + 6x =                             10) ax⁴ + ax³b + cx + cb =    

11) ax + x – 2a – 2 =                                     12) 6ax – 8abx + 6bx – 8b²x =         

13) 2ax² – bx² – 50a + 25b =                         14) a² + 5a – b² + 5b =                      

15) 3ax + 2ay + 3bx + 2by =                         16) 8xz – 8yz – 3x + 3y =

17) ax + bx + ay + by + az + bz =                 18) x² – 3x + 2xy – 6y =       

19) 5x + 10y – bx – 2yb =                             20) (a + b)² + 2(a + b) =

21) x¹⁰ – 49y⁶ =                                             22) 9 – 36a²b² =

23) 4a² – 25x²y⁴ =                                         24) 100x²y⁴ – 1 =

25) y² – 6xy + 9x² =                                      26) 9a² – 6a + 1 =

27) x² – 12x + 36 =                                       28) 9a² – 6ab + b² =

29) x⁴ + 12x² + 36 =