January 2019 1 29 Report
1. tentukan himpunan penyelesaian dari setiap persamaan kuadrat berikut.
a. x²-x-9 = 0 b. 7x²-x-2 = 0
2. tentukanlah himpunan penyelesaian x²-2x-8 = 0 dengan cara:
a. melengkapkan kuadrat sempurna

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