5ª tarea pensamiento numerico y algebraico 1.4

1.- (7x²+2)-(3x²-5)=

       7x²+2-3x²+5

       7-3=4x²

       2+5=7

R=4x²+7

2.- (8x²-x)-(7x²+3x)=

       8x²-x-7x²-3x

       8-7=1x²

     -1-3=-4x

R=1x²-4x

3.- ( 3x²-2x-1)-(4x²+2x+5)=

       3x²-2x-1-4x²-2x-5

       3-4=-1x²

      -2-2=-4x

      -1-5=-6

R=-1x²-4x-6

4.- (-3x+x²-1)-(5x+1-3x²)=

      -3x+x²-1-5x-1+3x²

       1+3=4x²

     -3-5=-8x

    -1+1=0

R=4x²8x+0                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               

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)=

      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

4ª tarea pensamiento numerico y algebraico 1.4

3ª tarea pensamiento numerico y algebraico 1.4

1.- a1= -27 d= 2 12 terminos

RESOLVER:




A1=-27+2= -25

SUCESION:

-27, -25, -23, -21, -19, -17, -15, -13, -11, -9, -7, -5

2.- a1= -34/9 d= 2/3 9 terminos

RESOLVER:

A1= -34/9 + 2/3 = 18+102/27 = 120/27 +2/3 = 122/81

SUCESION:

40/9+2/3 = 42/27 , 44/81, 46/243, 48/729, 50/2187, 52/6561, 54/19683, 56/59049

3.- a1= 67 d= -3.75 10 terminos

RESOLVER:

A1=67+(-3.75)= 63.25

SUCESION:

63.25, 67, 70.75, 74.5, 78.25, 82, 85.75, 89.5, 93.25, 97

4.- a1= 128.15 d=-12.35 7 terminos

RESOLVER:

A1=128.15+(-12.35)= 115.8

SUCESION:

115.8, 128.15, 140.5, 152.85, 165.2, 177.55, 189.9

5.- a1= 63/7 d= -9/7 11 terminos

RESOLVER:

A1=63/7 + (-9/7)=63 + 441/49 = 504/49

SUCESION:

63/7, 72/7, 81/7, 90/7, 99/7, 108/7, 117/7, 126/7, 135/7, 144/7, 153/7

6.- a1= -3 an= 187 n= -75


SN=(-3+187)-75 /2 =13800/2 = 6900

7.- a1= 2 an= 215 n= 164

SN=(2+215)164 /2= 35588/2 =17794

8.- a1= 21 an= 276 n= 321

SN=(21+276)321 /2= 95337/2= 47668.5

9.- a1= -78 d= -49

RESOLVER:

A1=-78+(-49) = -127


SUCESION:

-127, -176, -225, -274, -323, -372, -421, -470, -519, -568

10.- a1= 345 d= -169

RESOLVER:

A1=345+(-169)=176

SUCESION:

176, 345, 514, 683, 852, 1021, 1190, 1359, 1528, 1697