Question

Simplifique as expressões: (1,5) a) 8x – 2x +4x b) 5xy + 25xy – 12xy + 5xy c) 4a + 2b – 5b + 10a + 5c d) 2m + 5n + 4mn – n + 12mn – 10m e) 15bc + 18b – 3bc – 8b

Answer 1

Resposta:

a) 8x-2x+4x

8 + 2+4 = 10

10x

b) 5+y++25xy-12xy+5x

5+25-12+5=

30-7

23xy

c)4a+2b-5b+10a+5c

4a+10 a +2b-5b +5c

14a-3b+5c

d( 2m+5n+4mn-n

2m- 10m+5n-n+12mn+4mn

8m+4n+16mn

e) 15bc+18b-3bc-8b

18b-8b+15bc-3bc

10b+12bc