Question

Aplique a propriedade distributiva e calcule:
A) 2(a+4)=
B) 5(2a-1)=
C) -4(2x-3)=
D) 10(3a-2b+1)=
E) 3(x+2)+2(2x-1)+1=
F) 5(x+2y-1)-3(2x-y+1)-x+2

Answer 1

a) 2(a+4)= 2a+8

b)5 (2a-1)= 10a-5

c)-4 (2x-3)=-8x+12

d)10 (3a-2b+1)= 30a-20b+10

e)3 (x+2)+2(2x-1)-x+2

3x+6+4x-2-x+2

7x-x+6-2+2

=6×+6

f)5×+10y-5-6x+3y-3-x+2

5x-7x+13y-5-3+2

-2×+13y-8+2

-2x+13y-6

Bons estudos!

Answer 2

Resposta:

a) 2(a+4)= 2a+8

b)5 (2a-1)= 10a-5

c)-4 (2x-3)=-8x+12

d)10 (3a-2b+1)= 30a-20b+10

e)3 (x+2)+2(2x-1)-x+2

3x+6+4x-2-x+2

7x-x+6-2+2

=6×+6

f)5×+10y-5-6x+3y-3-x+2

5x-7x+13y-5-3+2

-2×+13y-8+2

-2x+13y-6

Explicação passo-a-passo: