Question

Suma los polinomios:
A) (6x³-3x²+2x) + (7x+3x³-2x²)
B) (8xy-6x²y+9x) + (-3x-6x²y+3)
C) (-7x³+2x²+6y) + (3x²-7y+9x³+2)
D) (2xy³+3x²-6zx) + (-zx-3x²+6xy)
E) (-8y⁴+9x⁷-3yx²) + (9x⁷+9y⁴+6x²y)

Answer 1

A) (6x³-3x²+2x) + (7x+3x³-2x²)
    =6x³-3x²+2x + 7x+3x³-2x² 
     =6x³+3x³-3x²-2x²+2x+7x
      =9x³-5x²+9x

B) (8xy-6x²y+9x) + (-3x-6x²y+3)
    =8xy-6x²y+9x-3x-6x²y+3
     =-6x²y-6x²y+8xy+9x-3x+3
      =12x²y+8xy+6x+3    


C) (-7x³+2x²+6y) + (3x²-7y+9x³+2)
    = -7x³+2x²+6y + 3x²-7y+9x³+2
      =-7x³+9x³+2x²+3x²+6y-7y+2
         =2x³+5x²-y+2

D) (2xy³+3x²-6zx) + (-zx-3x²+6xy)
   =3x²-3x²+2xy³-6xz-xz+6xy
    =2xy³-6xz-xz+6xy
     ==2xy³-7xz+6xy



E) (-8y⁴+9x⁷-3yx²) + (9x⁷+9y⁴+6x²y)
    =-8y⁴+9x⁷-3yx²+9x⁷+9y⁴+6x²y
      =-8y⁴+9y⁴-3yx²+6yx²+9x^7+9x⁷
        =y⁴+3yx²+18x⁷