leelea
leelea leelea
  • 13-04-2016
  • Mathematics
contestada

what are the zeroes of the polynomial equation?

f(x) = x^2+9x+20

Respuesta :

konrad509
konrad509 konrad509
  • 13-04-2016
[tex]x^2+9x+20=0\\ x^2+4x+5x+20=0\\ x(x+4)+5(x+4)=0\\ (x+5)(x+4)=0\\ x=-5 \vee x=-4[/tex]
Answer Link
apologiabiology
apologiabiology apologiabiology
  • 13-04-2016
zeroes are when f(x)=0
0=x^2+9x+20
factor
0=(x+4)(x+5)
set each to zero
x+4=0
x=-4
x+5=0
x=-5

zeroes are f(-5) and f(-4)
Answer Link

Otras preguntas

_________ and Rome were centers for the classics.. Spain Greece France
Which is not part of the Bill of Rights? A. right to a free press B. freedom from government regulation C. protection against unfair trials D. right to free spe
is | 4x + 2| + 6 = 0 no solution, all real numbers, 0, or 2
Who replaced Spiro Agnew as Vice President of the United States? Gerald Ford Jimmy Carter Richard Nixon Walter Mondale
The punishment for criminals was very severe in ancient Egypt. true or false
Which of the following Frenchmen would not be interested in settling in New France? fur traders noblemen priests fur trappers
what did spain not explore? Central America South America Caribbean Islands Canada
What is a ratio? Help please really need the answer helppp!
How did American sugar planters go outside the law to gain control over Hawaii
Which of the following benefited British exports to America? the absence of a uniform tariff rate the superior quality of British goods the economic recession i