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Find all the zeros of each equation.
x5 – 3x4 – 15x3 – 45x2 – 16x + 48 = 0
A. 3, 4, i
B. 4, –4, i,–i
C. 3, 4, –4, i, –i
D. 3, –4, –i
 one year ago
 one year ago
Find all the zeros of each equation. x5 – 3x4 – 15x3 – 45x2 – 16x + 48 = 0 A. 3, 4, i B. 4, –4, i,–i C. 3, 4, –4, i, –i D. 3, –4, –i
 one year ago
 one year ago

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tcarroll010Best ResponseYou've already chosen the best response.1
Do you know how to work with synthetic division?
 one year ago

JonaskBest ResponseYou've already chosen the best response.0
without thinking C has to be the one because it has 5roots and plynomial has high degree 5
 one year ago

tcarroll010Best ResponseYou've already chosen the best response.1
Some roots can be repeated.
 one year ago

tcarroll010Best ResponseYou've already chosen the best response.1
I'm questioning that original equation. Please doublecheck that you input it correctly.
 one year ago

jaydemarie4Best ResponseYou've already chosen the best response.0
Thanks! I have one more problem i need help with!
 one year ago

jaydemarie4Best ResponseYou've already chosen the best response.0
2. 7x2 – 144 = –x4 A. 3, –3, 4i, 0 B. 3, 4i C. 3, –3, 4i, –4i D. –3, –4i
 one year ago

jaydemarie4Best ResponseYou've already chosen the best response.0
oh and no i don't understand synthetic division :/
 one year ago

tcarroll010Best ResponseYou've already chosen the best response.1
I don't know how to teach you synthetic division in this forum. Way too much writing. I know the answer, but we're not allowed just to give a raw endresult answer. So, I'll give you 2 of the zeros which are 3 and 3. That leaves you with the factor x^2 + 16 = 0. You should be able to find the last 2 zeros from that. You can use the quadratic formula.
 one year ago

jaydemarie4Best ResponseYou've already chosen the best response.0
how do i use the quadratic formula to solve that though?
 one year ago

jaydemarie4Best ResponseYou've already chosen the best response.0
thank you so much for helping though!!
 one year ago
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