kledi72
23.12.2019 •
Mathematics
The function f is defined by
f(c)=x^2 +3x-10.
if f(x+5)=x^2 +kx+30, k= ?
find the smallest zero of f(x+5). x=?
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Ответ:
k=13
x= -10
Step-by-step explanation:
f(x)=x²+3x-10
f(x+5)=
=(x+5)(x+5)+3(x+5)-10
=x²+10x+25+3x+15-10
=x²+13x+30
0=x²+13x+30
0=(x+3)(x+10)
x= -3 or -10
-10< -3
smallest zero is -10
Ответ:
same so fu
Step-by-step explanation:
and thxxx hehehee