Question

m.m.c me ajudem pfvr é para amanhã

Answer 1

a)
a/ y-x + a/ y - x

2× a/y-x

2a/y-x

b)

x-5/x^2 -1 + 5/x^2 - 1

x-5+5 / x^2 -1

x/ x^2 -1



c) igual a " b "


d)
x+y / x-6 - 5x -2y / x-6

x-y-(5x-2y) / x-6

x+y-5x+2y / x-6

- 4x + 3y / x - 6