Question

reduza os termos semelhantes nas esprecoes a) 8(x-2)+7(x-5) b)(3x-4)-5x+2(3x-6) c) 10x+(x-4)-4(2x+1) d)2×-(x-x)-2(x-3)+x

Answer 1

a) 8(x-2)+7(x-5) =

8x - 16 + 7x - 35 = 15x - 51 = 3(5x - 17)

b) (3x-4)-5x+2(3x-6) =

3x - 4 - 5x + 6x - 12 = 4x - 16 = 4(x - 4)

c) 10x+(x-4)-4(2x+1) =

10x + x - 4 - 8x - 4 = 3x - 8

d) 2×-(x-x)-2(x-3)+x =

2x - (0) - 2x + 6 + x = x + 6