I have the answer just which order do i put it.

Question

-5x^2+5+4x-5y

So I think

-5x^2+4x-5y+5

Am I correct ?

Answer 1

You have couple ways to simplify this expression.

1.

- 5 x² + 5 + 4 x - 5 y² =

- 5 x² - 5 y² + 4 x + 5 =

- 5 ( x² + y² ) + 4 x + 5

2.

- 5 x² + 5 + 4 x - 5 y² =

- 5 x² + 4 x - 5 y² + 5 =

x ( - 5 x + 4 ) + 5 ( - y² + 1 )

3.

Of course you can write this result 2 as:

- 5 x² + 5 + 4 x - 5 y² =

- x ( 5 x - 4 ) - 5 ( y² - 1)