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Arlecino [84]
3 years ago
8

3(x+1)(x-1)=7x (By quadratic formula)

Mathematics
1 answer:
Vlada [557]3 years ago
3 0

Answer:

Step-by-step explanation:

3(x^{2} - 1) = 7x\\ 3x^{2} - 7x - 3 =0

x = [-(-7)±\sqrt{49 - 4(3)(-3)}] / 2(3)

x= (7 ±√85) / 6

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