Anna0114
Anna0114
01-06-2015
Mathematics
contestada
what are the zeros of (x-2)(x^2-9)
Respuesta :
Аноним
Аноним
01-06-2015
[tex](x-2)(x^2-9)=0\iff x-2=0\ or\ x^2-9=0\\\\x-2=0\ \ \ \ |add\ 2\ to\ both\ sides\\\\\boxed{x=2}\\\\x^2-9=0\ \ \ \ |add\ 9\ to\ both\ sides\\\\x^2=9\iff x=\pm\sqrt9\to \boxed{x=-3\ or\ x=3}\\\\Answer:\boxed{x=-3\ or\ x=2\ or\ x=3}[/tex]
Answer Link
VER TODAS LAS RESPUESTAS ( 22+ )
Otras preguntas
what was an important source of conflict between European nations prior to WW1
leo collected data to understand the relationship between the number of minutes minutes he exercises ina day and the number of hours he sleeps that night. usin
13. Which of the sentences below is punctuated incorrectly? (a) Johnson said, "One tiny virus, Blanche, can multiply so fast that it will become 200 viruses in
what was the marshall plan?
NEED HELP FAST!!! Match each graph with the description of the trend it shows. positive linear trend, negative linear trend, exponential trend, parabolic trend,
what was the triangular trade? which countries did it involve? what goods were exchanged?
pH is a measure of the hydrogen ion concentration of a solution. It is defined as the negative logarithm of the hydrogen ion concentration. The equation is:pH =
Describe how to solve problems for the area of a reduced or enlarged figure when the scale factor and dimensions of the original figure are given.
Find the domain of the function f(x)=12x+3. what is the only value of x x not in the domain?
Why do the gulag guards want to frighten the people they arrest?
