Question

the roots of quadratic equation 2x2+x+4=0 is
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Answer 1

Answer:

Solve the equation 2x2+x-4=0 by the method of completing the square. ⇒ x=(√33-1)4 or x=-(√33+1)4. Hence, -1+√334 and -1-√334 are the roots of the given equation.

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Answer 2

Answer:

${2x}^{2} + x + 4 \\ a \: = 2 \: \\ b \: = 1 \\ c \: = 4 \\ \\ d \: = {b}^{2} - 4ac \\ d = {1}^{2} - 4 \times 2 \times 4 \\ d = - 32 + 1 \\ d = - 31$

So there are not roots