Find the upper limit for the zeros of the function
P(x) = 4x 4 + 8x 3 - 7x 2 - 21x - 9

We need to find the zeros.

4x^4 + 8x^3 - 7x^2 -21x - 9

You're supposed to use synthetic division, assuming you're in algebra 2. I removed my calculus work.

x = -1 1/2, 1+sqrt5/2  , 1-sqrt5/2

x= -1.5000000119775176

4x 4 + 8x 3 - 7x 2 - 21x - 9= 0

x= -0.618033988749895

4x 4 + 8x 3 - 7x 2 - 21x - 9= 0

x= 1.618033988749895

4x 4 + 8x 3 - 7x 2 - 21x - 9= 0

the expected value of the random variable : 0, 1 and 2

step-by-step explanation:

answer

false

explanation

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