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sg3635939
05.07.2021 •
Mathematics
Quais são os zeros(ou raízes) da função quadrática f(x) = x² + 3x - 4? Assinale a alternativa correta. *
a) 2 e 3
b) 1 e - 4
c) 3 e 4
d) 4 e -1
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Ответ:
Given:
The quadratic function is:
To find:
The zeros of the given quadratic function.
Solution:
We have,
Splitting the middle term, we get
For zeros,
.
Therefore, the correct option is (b).
Ответ: