bickerree bickerree

08-07-2015
Mathematics

contestada

if x=-2 is a solution of the equation x^2+bx+6=0 what is the value of b

Respuesta :

hunaifirst hunaifirst

08-07-2015

u know x = -2

x²+bx+6=0

(-2)²+b(-2)+6 =0
4 -2b +6 = 0
-2b +6+4 =0

-2 b = -10
b= -10/-2
b= 5

Answer Link

Otras preguntas

How do I find a slope using a graph?

A production manager test 10 batteries and finds that their mean lifetime to be 468 hours. She then designs a sale package for this battery. It states that cons

as European nations became involved in World War 1 in 1914 the United States was

How long does it take a car to change its velocity from 15 meters per seconds to 25 meters per second if it accelerates uniformly at 5 meters per second square

HELP PLEASE!!!!!!! Which is the graph of y=-log(x-2)+3?

You need to perform maintenance on a router and need to temporarily reroute traffic through another office. which would be the best way to perform this action?

please help me !!! i really need the answer !! i will give a 5 rate star and brainliest!! Is the following graph an example of a nonlinear function ???? Yes or

the continuous movement of water between the Earth's surface and the atmosphere sewage 2. pollutes water sources by dumping wastes in rivers, streams, and oc

Which two surfaces would have the highest coefficient of friction?

Select all that apply. a nonmetal: is more likely to attract an electron than a metal is more likely to lose an electron than a metal requires more energy to lo