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OpenStudy (anonymous):
Find a polynomial with real coefficients and the zero's -1, 5-4i one such polynomial P(x) can be defined as P(x)=x^3-9x^2+_x+41 help me find the "_" please?
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OpenStudy (dumbcow):
Divide out the (x+1) using synthetic division -1| 1 -9 a 41 -1 10 -(a+10) ------------------------- 1 -10 (a+10) 0 Then conclude that a +10 = 41 a = 31
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