Question

simplify (3x-y) (x+y-xy) - (3x+y) (x-y+xy) ​

Answer 1

x=2/3

Step-by-step explanation:

(3x-y) (x+y-xy) - (3x+y) (x-y+xy)

3x²+3xy-3x²y-xy-y²+xy²-3x²+3xy-3x²y-xy+y²-xy=0

by cancelling the opposite sign numbers, we get,

3xy-3x²y-xy-+3xy-3x²y-xy=0

3xy+3xy-3x²y-3x²y-xy-xy=0

6xy-6x²y-2xy=0

6xy-2xy=6x²y

4xy=6x²y

4*x*y=6*x*x*y

6*x*x*y /4*x*y=0

by cancelling,

3*x /2=0

3x=2

x=2/3