October 2018 1 82 Report
Jabarkan dan sederhanakan penguadratan di bawah ini
a. (x + 4)² + (x + 2)²
b. (b - 6)² - (b + 4)²
c. (3x + 2y + 5z)²
d. (5x² - 2x - 5)²

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