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Laison14
@Laison14
December 2019
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Calcule o discriminante da equação 4x²-7x-12=0
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giulinha2908
4x² - 7x - 12 = 0
a = 4
b = - 7
c = - 12
delta= b² - 4.a.c
delta = - 7² - 4. 4. -12
delta = 49 + 192
delta = 241
x = - b +/- raiz quadrada de delta/ 2.a
x = - (-7) +/- raiz quadrada de 241/ 2.4
x1 = 7 + raiz quadrada de 241/ 8
x2 = 7 - raiz quadrada de 241/8
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Lista de comentários
a = 4
b = - 7
c = - 12
delta= b² - 4.a.c
delta = - 7² - 4. 4. -12
delta = 49 + 192
delta = 241
x = - b +/- raiz quadrada de delta/ 2.a
x = - (-7) +/- raiz quadrada de 241/ 2.4
x1 = 7 + raiz quadrada de 241/ 8
x2 = 7 - raiz quadrada de 241/8