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

User Sashimi
by
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1 Answer

2 votes

Answer:

Explanation:


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

x = [-(-7)±
√(49 - 4(3)(-3))] / 2(3)

x= (7 ±√85) / 6

User Poke
by
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