Question

Solve for x:
9x2+5x+280=0
(9 x squared plus 5 x plus 280 = 0)

Answer 1

Step-by-step explanation:

it has imaginary solution....

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Answer 2

Answer:

$9 {x}^{2} + 5x + 280 = 0 \\ = > x = \frac{ - 5( + - ) \sqrt{ {5}^{2} - 4 \times 9 \times 280 } }{2 \times 9} \\ = > x = \frac{ - 5( + - ) \sqrt{25 - 10080} }{18} \\ = > x = \frac{ - 5( + - ) \sqrt{ - 10055} }{18} \\ which \: is \\ either\\ x = \frac{ - 5 + \sqrt{ - 10055} }{18} \: \\ or \\ x = \frac{ - 5 - \sqrt{ - 10055} }{18}$