quanntwann2873
30.07.2019 •
Mathematics
The function f is defined by f(x) x2 +3x-10. if fx +5)x2 +kx+30, k = [? ] find the smallest zero of f(x+5). x = [? ]
![The function f is defined by f(x) x2 +3x-10. if fx +5)x2 +kx+30, k = [? ] find the smallest zero of](/tpl/images/03/04/HIFw5ULLK20QzTX7.jpg)
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Ответ:
f(x)=x²+10x+25+3x+15-10
f(x)=x²+13x+30
k=13
x²+13x+30=0
(x+3)(x+10)=0
x=-3 or -10
the smallest zeros is x=-10
Ответ:
1/103
Step-by-step explanation:
7/721=1/103