Question

Resuelve las siguientes operaciones de adiciones de polinomio

algebraicos.

a) (8x2 – 2x + 1) + (3x2 + 5x – 8) =

b) (2x3 – 3x2 + 5x – 1) + (x2 + 1 – 3x) =

c) (7x4 – 5x5 + 4x2 –7) + (–3x4 + 5 – 8x + 2x3

) =

d) (-5x2 – 10x – 7y + 2) + (3x2 – 4 + 7x) =

e) (15x

2 + 12xy + 20) + (9x

2 + 10xy + 5) =​

Answer 1

a) (8x2 – 2x + 1) + (3x2 + 5x – 8)

=16-2x+1+6+5x-8

=17+3x-8

=9+3x

b) (2x3 – 3x2 + 5x – 1) + (x2 + 1 – 3x)

=6-6+5x-1+2x+1-3x

=4x

c) (7x4 – 5x5 + 4x2 –7) + (–3x4 + 5 – 8x + 2x3 )

=28-25+8-7+12+5-8x+6

=11-7+12+5-8x+6

=27-8x

d) (-5x2 – 10x – 7y + 2) + (3x2 – 4 + 7x)

=10-10-7y+2+6-4+7x

=4+7x-7y

e) (15x 2 + 12xy + 20) + (9x 2 + 10xy + 5)

=30+12xy+20+18+10xy+5

=22xy+73