Question

1. x² - 1 + y(y - 2x)​





somebody plz help meeeeeeeeeeeeeeeeeeeeeee

Answer 1

Step1:Multiply each term in the parentheses by y.


Step2: calculate the product

Answer 2

`{(x + y)}^(2) - 1`

Explanation:

`{x}^(2) + y(y - 2x) - 1`

`{x}^(2) + {y}^(2) - 2xy - 1`

Using the identity (a - b)^2 here ,

`{(x + y)}^(2) - 1`