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OpenStudy (anonymous):
How many real number solutions does the equation have? -8x^2 - 8x - 2 = 0 A: One solution B: Two solutions C: No solutions D: Infinitely many solutions
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OpenStudy (rational):
|dw:1427340006863:dw|
OpenStudy (rational):
look at the graph above how many times does it cross x axis ?
OpenStudy (anonymous):
once
OpenStudy (rational):
Yes clearly it becomes 0 only once so only one solution
OpenStudy (jhannybean):
You can also use the discriminant, \(b^2-4ac\) to find the # of real and imaginary solutions once you simplify the equation.
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