Respostas

2013-11-30T13:22:52-02:00
F(x) = y
y = 
- 4x + 20x - 25 = 0
16x - 25 = 0
16x = 0 + 25
16x = 25
x = 25 ÷ 16
x = 1,5625

x + 36 = 0
x = 0 - 36
x = - 36


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