Resolver 03 equaçoes do tipo Ax²+bx=0
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a) x² + x = 0
x= -1 ± 1/2
x= -1 - 1/2= 0/2= 0
x= -1 - 1/2= -2/2= -1
b) 7x² - x = 0
x= 1 ± 1/14
x= 1 - 1/14= 0/14= 0
x= 1 + 1/14 = 2/14= 1/7
c) 2x² = 7x
2x² - 7x= 0
x= 7 ± 7/4
x= 7 - 7/4= 0/4= 0
x= 7 + 7/4= 14/4= 7/2
x= -1 ± 1/2
x= -1 - 1/2= 0/2= 0
x= -1 - 1/2= -2/2= -1
b) 7x² - x = 0
x= 1 ± 1/14
x= 1 - 1/14= 0/14= 0
x= 1 + 1/14 = 2/14= 1/7
c) 2x² = 7x
2x² - 7x= 0
x= 7 ± 7/4
x= 7 - 7/4= 0/4= 0
x= 7 + 7/4= 14/4= 7/2
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