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Hai sayang...Aq bantu kamu ya.
a. 1/9m² + 2m + 9
(1/9m+1)(m+9)
b. 25n² - n² + 1/100
Soalnya bener nih ? Coba cek lagi. Masa n² ada 2 ?
c. 1/4x² - 3/5xy + 9/25y²
(1/2x-3/5y)(1/2x-3/5y)