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Rumus ---> a² - b² = (a+b).(a-b)
No. 2
Menyelesaikan pembilangnya
rumus: ax² + bx + c = (ax + p).(ax+q)
a
syarat ---> p x q = a.c
p + q = b
-15x² - 14x - 3 = -9 x (-5) = 45
= (-5x - 3)(3x + 1) -9 + (-5) = -14
Jadi,
= -5x - 3
No. 3
60x³ + 16x² - 16x - 3 = ...?
3x+1
Pembagian kurung
20x² + 2x - 6
3x + 1 / 60x³ + 26x² - 16x - 6
60x³ + 20x² _
6x² - 16x - 6
6x² + 2x _
-18x - 6
-18x - 6 _
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