Question

$2x - 4x {}^{2} - 18$
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Answer 1

Answer:

Step-by-step explanation:

-4x^2+2x-18=0

-2(2x^2-x+9)=0

2x^2-x+9=0

Discriminant=b^2-4ac

=(1)^2-4×2×9

=1-72

=-71<0

Discriminant is smaller than 0 so this equation have no roots.