Find the Interval(s) for B Such That the Following Equation $4 x ^ { 2 } + b x + 13 = 0$

question 321

Multiple Choice

Find the interval(s) for b such that the following equation has at least one real solution and write a conjecture about the interval(s) based on the values of the coefficients
$4 x ^ { 2 } + b x + 13 = 0$ .

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