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 ( 75+ )
Otras preguntas
Which of the following units are used to measure temperature? Select all that apply. A. Joules B. Kelvins C. Newtons D. degrees Celsius
Which two features are commonly found at divergent plate boundaries? (1) mid-ocean ridges and rift valleys (2) wide valleys and deltas (3) ocean trenches and su
a machine grinds 2/7 pound of spices in 1/3 second. what is the machines rate, in pounds per second of grinding spice
Why are Shakespeare's plays considered difficult for modern students to understand? a. The plays were translated from another language and sometimes don't make
34 What is the gram-formula mass of Fe(NO3)3?(1) 146 g/mol (3) 214 g/mol (2) 194 g/mol (4) 242 g/mol
The Magna Carta and the English Bill of Rights both served to (1) extend the voting privileges of commoners (2) abolish the government’s role in levying taxes (
… The Opium War of 1839–42 was short and one-sided, due to the superiority of European weapons, which came as a complete surprise to the Chinese. In the first s
Nationalism is the love and devotion toward a _____. baseball team form of government religion country
How does the book marley & me connect in any way to history or to literature? Does the character remind you of a famous person? Does the plot remind you of
A student throws a 5.0-newton ball straight up. What is the net force on the ball at its maximum height? (1) 0.0 N (3) 5.0 N, down (2) 5.0 N, up (4) 9.8 N, down
