Determine Upper and Lower Bounds for the Real Roots of the Equation

question 1

Multiple Choice

Determine upper and lower bounds for the real roots of the equation.
5x ⁴ - 10x - 12 = 0

• A) 2 is an upper bound, - 1 is a lower bound
• B) 8 is an upper bound, - 1 is a lower bound
• C) 1 is an upper bound, - 2 is a lower bound
• D) 2 is an upper bound, - 4 is a lower bound
• E) 8 is an upper bound, - 4 is a lower bound

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