6ta TAREA: Suma y Resta de Polinomios. TURNO: Matutino (1-4).

1.  (7x²+2)-(3x2-5)=                                                            2.(8x²-x)-(7x²+3x)=                                                             

    3x²-2x-1-4x²-2x-5                                                                   -3-5=-8x

     

       3-4=-1x²                                                                                  R= 4x²-8X-0   

      -2-2=-4x

      -1-5=-6

R=-1x²-4-6  

5. (-1+7x²-2x)-(5x+3x²-7)                                                     

   -1+7x²-2x-5x-3x²+7

     7-3=4x²

     -2-5=-7x

     -1+7=6

R= 4x²-7x+6

6.(7x³-x²+x-1)-(2x²+3x+6)=

     7x³-x²+x-1-2x²-3x-6

     7x³

     -1-2=-3x²

     1-3=-2x

     -1-6=-7

R=7x³-3x²-2x-7

7.(5x²-2x+5)-(3x³-x²+5)=

      5x²-2x+5-3x³+x²-5

      -3x³

      5+1=6x²

      -2x

      5-5=0

R=-3x+6x²-2x+0

8.   3x²-x-7-5x³-5+x²-2x

      -5x³

          3+1=4x²

      -1-2=-3x

      -7-5=-12

  R=-5x³+4x²-3x-12

9.(6x³-2x²-3x+1)-(-x³-x²-5x+7)=

      6x³-2x²-3x+1+x³+x²+5x-7

      6+1=7x³

        -2+1=-1x²

    -3+5=2x

     1-7=-6

R=7x³-1x²+2x-6

10.( x-3x²+x³+9)-(-8+7x-x²+x³)=

         x-3x²+x³+9+8-7x+x²-x³

        1-1=0x³

        -3+1=-2x²

        1-7=-6x

        9+8=17

R= 0x³-2x²-6x+17

7x²-3x ²=4x²                                                                          8x²-7x²=x²

2+5=7                                                                                       -x-3x=-4x

4x²+7                                                                                          x²-4x

 

3..-(3x²-2x-1)-(4x²+2x+5)(5x+1-3x²)=                           4. (-3x+x²-1)-(5x+1-3x²)=

                                                                                                           -3x+x²-1-5x-1+3x²

                                                                                                           1+3=4x²