Question

Resolva as equação incompleta sendo U = IR:
a) x²- 49 = 0
b) x² =0
c) 4 x² = 36
d) 4 x² - 12 x = 0
e) x² = x =0

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Answer 1

Resposta:

a)×^2=49 ×=+-7

b)×=0

c)×^2=36/4 ×^2=9 ×=+-3

d)4×(×-3)=0 ×=0 ×=3

e)x^2-×=0 ×(×-1)=0