Which numbers are a distance of 3 units from 12 on a number line? A number line ranging from negative 5 to 17. Select each corre
ct answer.
2 answers:
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p(x)= -
+ 800x - 1599
given x = a is a zero of a polynomial p (x) then
(x - a) is a factor of the polynomial
complex zeros occur in conjugate pairs
5 + 4i is a zero hence 5 - 4i is a zero
factors are (x - 3),(x + 13),(x - (5 + 4i) and (x - (5 - 4i)
The polynomial is the product of it's factors
p(x) = (x - 3)(x + 13)(x - (5 + 4i)(x - (5 - 4i)
expanding the factors
p(x) = ( + 10x - 39)(
- 10x + 41)
= -
+ 800x - 1599