(6x - 9y)(6x - 9y) Dijwab YEAH

Question

Matematika Diposting : 2017-07-31 Diupdate : 2018-07-27 ArwiantoLazarus

Pertanyaan

(6x - 9y)(6x - 9y)
Dijwab YEAH

Answer 1

(6x - 9y)(6x - 9y)
= 36x² - 54xy - 54 xy + 81y²
= 36x² - 108xy + 81y².

Answer 2

Rumus (a + b)²:
(a + b)² = a² + 2ab + b²

(6x - 9y)(6x - 9y)
= (6x - 9y)²
= (6x)² + 2(6x)(-9y) + (-9y)²
= 36x² -108xy + 81y²