Question

simplifique as fórmulas, eliminando parênteses e reduzindo os termos semelhantes.
a)g=2(x-3x+1)-5(x+6x+8)
b)h=5x+4x+2-3(x+2x+1)
c)i=6x-4x+1-2(3x-2x)
d)j=8x-8x+12x-(6x}+1)

Answer 1

a)g=2(x-3x+1)-5(x+6x+8)= 2x - 6x +2 -5x -30x -40  = -39x -38 
b)h=5x+4x+2-3(x+2x+1) = 5x + 4x + 2 -3x -6x -3 = -1 
c)i=6x-4x+1-2(3x-2x) = 6x - 4x + 1 - 6x + 4x = 1
d)j=8x-8x+12x-(6x}+1) = 8x - 8x + 12x - 6x - 1 = 6x - 1