7. Identifique se as equações são completas ou incompletas, se forem incompletas indique o termo que falta:

a) 5x² - 2 = 0 ___

b) 3x² = 0 ___

c) 2x²-3x = 0 ___

d) -x² - 6x = 0 ___

e) x²-x-6= 0 ___

f) 6-5x + x² = 0 ___

g) 3x² - 2x-1=0 ___

h) x² - 10x + 40 = 0 ___​
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