Jawab:
Penjelasan dengan langkah-langkah:
1. 6a+4b - (3a+b) = 6a + 4b - 3a - b = 6a-3a +4b -b = 3a +3b = 3 (a+b)
2. 2x^2 + 6x - (x^2 - 9x) = 2x^2 + 6x - x^2 + 9x = 2x^2 - x^2 + 6x + 9x = x^2 + 15 x
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Jawab:
Penjelasan dengan langkah-langkah:
1. 6a+4b - (3a+b) = 6a + 4b - 3a - b = 6a-3a +4b -b = 3a +3b = 3 (a+b)
2. 2x^2 + 6x - (x^2 - 9x) = 2x^2 + 6x - x^2 + 9x = 2x^2 - x^2 + 6x + 9x = x^2 + 15 x