100 Things Nationals Fans Should Know & Do Before They Die (100 Things...Fans Should Know)

100 Things Nationals Fans Should Know & Do Before They Die (100 Things...Fans Should Know)

Matematika Nilai koefisien x2 dari persamaan kuadrat (5x + 1)(3x – 1) = 0 adalah....​

Nilai koefisien x2 dari persamaan kuadrat (5x + 1)(3x – 1) = 0 adalah....​

Jawaban:

(5x + 1)(3x - 1) = 0

(5x)(3x) + (5x)(-1) + (1)(3x) + (1)(-1) = 0

15x² - 5x + 3x -1 = 0

15x² - 2x - 1 = 0

koefisen x² = 15

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