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Thayskaikru
@Thayskaikru
December 2019
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Usando a fatoração do trinômio quadrado perfeito, resolva a equação 4x²- 12x + 9 =25
Com o cálculo por favor!
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rodrigoreichert
Verified answer
4x² - 12x + 9 = 25
(2x - 3)² = 5²
2x' - 3 = 5
2x' = 5 + 3
2x' = 8
x' = 4
2x'' - 3 = -5
2x'' = -5 + 3
2x'' = -2
x'' = -1
2 votes
Thanks 3
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Verified answer
4x² - 12x + 9 = 25(2x - 3)² = 5²
2x' - 3 = 5
2x' = 5 + 3
2x' = 8
x' = 4
2x'' - 3 = -5
2x'' = -5 + 3
2x'' = -2
x'' = -1