September 2019 2 20 Report
Bentuk sederhana dari :
3x² -5x + 7 - 2x² + 4x - 9 adaalh
A. x² + x - 2
B. x² - x- 2
C. x² + 9x + 16
D. x² - 9x - 2
Pakai cara ya :)
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