23-11-2016
Mathematics

contestada

Sole the equation 2x(2x-1)=x to the power of two plus 3x+2

Respuesta :

texaschic101 texaschic101

23-11-2016

2x(2x - 1) = x^2 + 3x + 2
4x^2 - 2x = x^2 + 3x + 2
4x^2 - x^2 - 2x - 3x - 2 = 0
3x^2 - 5x - 2 = 0
(3x + 1)(x - 2) = 0

3x + 1 = 0
3x = -1
x = -1/3

x - 2 = 0
x = 2

so x = -1/3 or x = 2

Answer Link

Otras preguntas

to compare the ways that two authors use theme, what is the best approach?

AB is parallel to CD, and EF is perpendicular to AB. The number of 90 degree angles formed by the intersections of EF and the two parallel lines AB and CD is

How to write a equivalent expression

Water acts to dissolve molecules in the body. how does water dissolve the salt (nacl) in your mouth from a salty pretzel? view available hint(s) water acts to d

Hyacinthe rigaud painted a 1701 portrait of __________.

An item has a price tag of $35 and another tag that says, "20% off." what is the sale price? a) $20 b) $25 c) $28 d) $30

The country of maracon downplays individual goals and emphasizes the collective goals of the country. maracon's political system is most likely an example of

BRAINLIESTTTT! PLEASE ASAP! How does Manifest destiny effects Native Americans? Why were Cherokees, and other Natives, forced off their land?

In the book, Brave New World. why did early attempts at sleep teaching fail? how dd they improve it ?

The length of a rectangle is 3 yd longer than its width. if the perimeter of the rectangle is 30 yd , find its area