3x2-5x=-4 what is the nature of the roots?
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Arrange in standard form ax² + bx + c = 0
3x² - 5x + 4 = 0
a = 3
b = -5
c = 4
Discriminant = -b² - 4ac
Discriminant = -(-5)² - 4 (3)(4)
= - 25 - 48
= - 73
ANSWER: The discriminant is - 73.
If the discriminant is less than 0, there are no real roots.
- 73 < 0, therefore the roots of 3x² - 5x = -4 is not real.