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Either +/- 1, and the discriminant will tell. b2 - 4ac

Y = 5X2 - 4 + 1

(- 4)2 - 4(5)(1)

= 16 - 20

= - 4

==========It that 1 is positive then no real roots.

Y = 5x2 - 4 - 1

(- 4)2 - 4(5)(- 1)

16 + 20

= 36

==========if 1 is negative then two real roots.

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11y ago
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Q: How many roots does the graph y 5x 2 - 4x 1have?
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