Question

Expand : (2x –y +1)².
pls send the pic of the solution.

Answer 1

Answer:

4x²- 4xy+ y²+4x-2y+1

Step - by - step Explanation:

(2x-y+1)²

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

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

= 4x²-2xy+2x-y (2x-y+1)+1(2x-y+1)

= 4x²-2xy +2x - 2xy +y² - y+1(2x-y+1)

= 4x²-2xy +2x +y²-y²-y +2x -y+1

= 4x² -4xy +2x+y² - y+2x-y+1

=4x² -4xy + 4x+y² - y - y + 1

=4x²- 4xy + 4x + y²- 2y +1

= 4x² - 4xy + y² + 4x -2y +1

Hope It's help you.

PLEASE PLEASE MARK ME AS BRAINLIST.