Question

Reduza as expressões algébricas a seus termos semelhantes a) 3x + 4y – 5x + 7y b) 5x2 + 3x – 5xy + 8x2 + 11x – 10y c) 8a + 5b – 9bc + 6b – a d) -13x2 + 12y + 8x2 - 10y e) (ab + 3cd - ab + 5ab) - (2ab - 3cd)

Answer 1

A) 3x + 4y - 5x + 7y
3x - 5x +4y + 7y

-2x + 11y

B) 5x^2 + 3x - 5xy + 8x^2 +11x -10y
5x^2 + 8x^2 + 3x +11x -5xy -10y

13x^2 + 14x - 5xy - 10y

C) 8a + 5b - 9bc +6b -a
8a -a +5b + 6b - 9bc

7a + 11b - 9bc

D) -13x^2 + 12y + 8x^2 -10y
-13x^2 + 8x^2 +12y -10y

-5x^2 + 2y

E) (ab + 3cd - ab + 5ab) - (2ab-3cd)
3cd + 5ab - 2ab + 3cd

6cd + 3ab

Answer 2

Resposta:

a)-2x+11y

b)26+14x-5xy-10y

c)7a+11b-9bc

d)2y-10

e)3ab