5. Discuss the nature of the quadratic equation 2x2 + x + 4 = 0
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2x²+x+4=0
compare equation with ax²+bx+c=0
a=2,b=1,c=4
b²-4ac=1²-4×2×4
=1-32
=-31
b²-4ac>0
therefore the roots of quadratic equation is not real.
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