-Determine os valores de a , b , c e classifique as equações em completas ou incompletas :
a- 3 x² - 12 x + 9 = 0 ____________________ b- 2 x² - 10 x = 0 _______________________

a= _________ b= _______ c= ________
a= ________ b= _________ c= ________
c- 5 x² - 35 = 0 ________________________ d- 4 x² = 0 _______________________________
a= _________ b= ________ c= _________ a= ________ b= __________ c= __________
e- - x² + 6 x – 13 = 0 ____________________ f- 6 x² - 8 x + 3 = 0 ________________________
a= _______ b= ________ c= ___________ a= ________ b= ________ c= ____________