Question

Factorise (3x-7y+1)^-(2x-9y-8)^​

Answer 1

Answer:

2x-3y+1) /2= (x+9y+8) /3= (4x+7y+12) /5 = k

( 2x-3y+1) = 2k

(x+9y+8) = 3 k

So 3x +6y + 9 = 5k

4x + 7y + 12 = 3x +6y + 9 = 5k

x +y +3 = 0

x+y=-3