August 2018 2 199 Report
Tentukan jumlah dari:
a. 8x2 + 4x - 21 dan 6x2 - 14x + 7
b. 2 (3a + 5b + 3) dan 4 (2b - 3a + 6)

kurangilah :
a. 12p - 7q + 6 dari 15p + 18q -17
b. -5 (4y2 - 2y + 8) dari 4 (7y2 + 6y - 5)

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