Question

(3x²y-2xy²)² по формуле пжжжж​

Answer 1

Ответ:

9х^4y^2 -12x^3y^3+4x^2y^4

Answer 2

$\displaystyle \tt {(3 {x}^{2}y - 2x {y}^{2} ) }^{2} = {(3 {x}^{2}y) }^{2} - 2 \cdot3 {x}^{2} y \cdot2x {y}^{2} + {(2x {y}^{2}) }^{2} = \\ \\ \displaystyle \tt = \bold{9 {x}^{4} {y}^{2} - 12 {x}^{3} {y}^{3} + 4 {x}^{2} {y}^{4} }$

Формула:

$\displaystyle \tt (a-b)^2=a^2-2ab+b^2$