(-3x-4y) ² pke cara yaa

(-3x - 4y) (-3x - 4y)
= 9x² + 12xy + 12xy + 16y²
= 9x² + 24xy + 16y²

semoga membantu dan bermanfaat

(-3x - 4y)²
= (-3x - 4y) (-3x - 4y)
= (-3x)(-3x) + (-3x)(-4y) + (-4y)(-3x) + (-4y)(-4y)
= 9x² + 12xy + 12xy + 16y²
= 9x² + 24xy + 16y²