" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
b) (2x - 9y)(2x - 9y)
⇔ m² - 5mn - 5mn + 25n²
⇔ m (m - 5n) - 5n (m - 5n)
⇔ (m - 5n) (m - 5n)
b. 4x² - 36xy + 81y²
⇔ 4x² - 18xy - 18xy + 81y²
⇔ 2x (2x - 9y) - 9y (2x - 9y)
⇔ (2x - 9y) (2x - 9y)