Question

roots of 2x^2+x+4=0 are

A possitive and negative
B both positive
C both negative
D no real root​

Answer 1

Answer:

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Step-by-step explanation:

$2 {x}^{2} + x + 4 = 0 \\ = > discriminant \: = {b}^{2} - 4ac \\ = > {1}^{2} - 4(2)(4) \\ = > 1 - 32 \\ = > - 31 < 0 \\ = > roots \: are \: imaginary \\ \: and \: no \: real \: root \:$

option D) no real root is the answer