Question

i am testing your brain
pls answer this question

Answer 1

Step-by-step explanation:

hopefully this is the answer that you were looking for

Answer 2

Answer: xy - 6x²y + 3x³y - 6x²y²

Step-by-step explanation:

Let's simplify all equations

So first equation is xy(x² - xy - 1) = x³y - x²y - xy ----------------- (EQ 1 )

Second equation is 2(xy - x²y) = 2xy - x²y -------------------- (EQ 2)

Third equation is 2x(2xy - x²y + 3xy²) = 4x²y - 2x³y + 6x²y² ------------- (EQ 3)

So now we have to add EQ 1 & EQ 2. And after adding them subtract their sum from EQ 3.

EQ 1 + EQ 2

= ( -xy - x²y + x³y ) + ( 2xy - x²y )

= 2xy - xy -x²y - x²y +x³y -------------------- (open the bracket and keep terms with similiar variable together )

= xy - 2x²y + x³y ------------------- (EQ 4)

So now we have to subtract EQ4 from EQ 3

= (xy - 2x²y + x³y) - (4x²y - 2x³y + 6x²y² )

= xy - 2x²y - 4x²y + x³y + 2x³y - 6x²y² ------------ (opened the brackets )

= xy - 6x²y + 3x³y - 6x²y²

So our final answer is xy - 6x²y + 3x³y - 6x²y² .

Hope this helped :)