mohon caranya ya sama penjlasannya ga ngertu

(x - 2y)²
= (x - 2y)(x - 2y)
= x(x) + x(-2y) - 2y(x) - 2y(-2y)
= x² - 2xy - 2xy + 4y²
= x² - 4xy + 4y²
(C)

(x - 2y)²
= (x - 2y) (x - 2y)
= (x)(x) + (x)(-2y) + (-2y)(x) + (-2y)(-2y)
= x² - 2xy - 2xy + 4y²
= x² - 4xy + 4y²

Jawabannya C