Question

Find the discriminant of quadratic equation 2xsquare+X+4=0

Answer 1

Answer:

$\red { Discreminant } \green {= -31 }$

Step-by-step explanation:

$Compare \: 2x^{2} + x + 4 = 0 \: with \\ax^{2}+bx+c = 0, \:we \:get$

$a = 2 , \: b = 1 , \: c = 4$

$Discreminant (D) = b^{2} - 4ac \\= 1^{2} - 4\times 2 \times 4 \\= 1 - 32 \\= -32 \\= Less \:than \:zero$

D < 0

$Roots \: are \: not \:real$

Therefore.,

$\red { Discreminant } \green {= -31 }$

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