Matematika Sekolah Menengah Pertama Aljabar~(3y + 2x - 3)² = ​

rowlandlynchulv – April 10, 2023

Aljabar~

(3y + 2x - 3)² =

​

(3y + 2x - 3)²

= (3y + 2x - 3)(3y + 2x - 3)

= 9y² + 6xy - 9y + 6xy + 4x² - 6x - 9y - 6x + 9

= 9y² + 6xy + 6xy - 6x - 6x - 9y - 9y + 4x² + 9

= 4x² + 9y² - 12x + 12xy - 18y + 9

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