Question

4x elevado a 2 menos 12x mais 9= 0 (3/2)

Answer 1

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4x² - 12x + 9 = 0

-(-12) ± √(-12)² - 4(4)(9) / 2(4)

12 ± √144 - 144 / 8

12 ± √0 /8

12/8

6/4

2/3

S = { 2/3 }

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Att: MarcosPCV