B. x² - 15x - 36 = 0
7 × x² + 1 = 15
8 × 7 = 56 - 5 × 4 = 36
Semoga saja benar :)
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B. x² - 15x - 36 = 0
7 × x² + 1 = 15
8 × 7 = 56 - 5 × 4 = 36
Semoga saja benar :)