Question

Expand = (2x y +1) whole power square
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Answer 1

Answer:

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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 + y

Answer 2

Answer:

$4 {x}^{2} {y}^{2} + 1 + 2xy2$

Step-by-step explanation:

${(2xy + 1)}^{2} \\ {(2xy)}^{2} + {(1)}^{2} + 2xy \\ = 4 {x}^{2} {y}^{2} + 1 + 2xy$