palcochran1313
05.10.2019 •
Mathematics
What is the degree 3 polynomial that has zeros -3,2 and 5 and in which the coefficient of x^2 is -8?
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Ответ:
the facors of the polynomial is
(x-r1)(x-r2)(x-r3)
roots
-3,2,5
(x-(-3))(x-2)(x-5)
(x+3)(x-2)(x-5)
the coefient of the x term is -4
so mutliply the whole thing by 2
(2)(x+3)(x-2)(x-5)
expand
f(x)=2x^3-8x^2-22x+60
Ответ:
26 > 25 ( meaning 26 is greater than 25)
Step-by-step explanation:
5²+(x-2)²25
when x = 3
25+(3-2)²25
25 +1 25
26 > 25 ( meaning 26 is greater than 25)