Answer:

-127

Step-by-step explanation:

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Problem:

Find the discriminant of 4x² - x + 8 = 0

Solution:

Quadratic equations finding the descriminant and nature of roots.

• 4x² - x + 8 = 0

Identify the values of a, b and c.

• a = 4
• b = -1
• c = 8

Apply the formula in finding the descriminant. (Remember: D = b² - 4ac)

• D = b² - 4ac
• D = (-1)² - 4(4)(8)
• D = 1 - 4(32)
• D = 1 - 128
• D = -127

Write the discriminant and identify if the nature of roots is equal or enequal to zero, or if it is below zero.

Answer:

• The discriminant is -127
• The nature of roots is not real

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