Question

Kak tolong bantuin ka yang no 6, Plis besok di kumpulin kak

Answer 1

(1/(x+y) - 2/(x-y)) / (3/(x-y) - 4/(x+y)) (ini soalnya, pasti bingung)

= (((x-y)-2(x+y))/x²-y²) / ((3(x+y) + 4(x-y))/x²-y²) (disamakan penyebutnya)

= (x-y-2x-2y)/(x²-y²) / (3x+3y+4x-4y)/(x²-y²)

= (-x-3y) /(7x-y)

= -(x+3y) / (7x-y) (hasil akhir, soalnya udah gk bisa diapa2in lagi)