Question

Simplify this expression​

Answer 1

3x^2+27y^2-18xy

Explanation:

3(x-3y)^2

3 [(x-3y)(x-3y)]

3 [x^2-3xy-3xy+9y^2]

3 [x^2-6xy+9y^2]

open d bracket

3x^2-18xy+27y^2

rearrange

3x^2+27y^2-18xy

Answer 2

3x² - 18xy + 27y²

Explanation:

= 3 ( x - 3y )²

= 3 ( x² - 2 * -3y * x + ( -3y)²)

= 3( x² - 6xy +9y²)

= 3x² - 18xy + 27y²