Help trig question involving discriminant
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Help trig question involving discriminant

[From: ] [author: ] [Date: 11-11-18] [Hit: ]
........
a)Find the value of the discriminant.
b)Use any method to find the real roots of the equation if they exist.

2x^2+7x=0 how to find the discriminant?

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b) is trivial....x [ 2x + 7 ] = 0 ---> x = 0 & - 7/ 2

a) this is just [ b² - 4ac ] where { a x² + b x + c = 0 }...here it is 49
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