KelseyCalcines KelseyCalcines

22-02-2017
Mathematics

contestada

I want to how they answer this question. What is the value of x?

I want to how they answer this question What is the value of x class=

Respuesta :

ChandrikaP ChandrikaP

22-02-2017

√(15+x) = 2x+3
take sqr for both side

15x+10=(2x+3)^2

15x+10=4x^2+9+2*2x*3
15x+10=4x^2+9+12x
4x^2-3x--1=0

solve it u will x=1,-1/4

Answer Link

Otras preguntas

Tai ran from his home to a position 300 m south of his home in 100 seconds. What was his velocity? A.0.33 m/s south B.0.33 m/s north C.3 m/s north D.3 m/s south

Figure 17-2 shows highest fitness toward the center of the curve. When individuals with an average form of trait have the highest fitness the result is A-not

Marukh can wash the car in 10 minutes. steven can wash the car in 60 minutes. if marukh and steven work together, how long will it take them to wash the car? ro

parliment repealed the stamp act because A) colonial protests were not effective B) Parliament realized it had no right to tax the colonies C) colonial protests

Which ones do I choose?

The pituitary gland releases chemicals knows as: A. Metabolics B. Nutriates C. Endorphins

Why do we cut both segments of DNA with the same restriction enzyme?

140% of a number is 364. Find the number

If you are standing in the middle of a river and look at either side, you might see tall earthen hills. what are they and what do they do?

What factors encouraged the development of a totalitarian government in the Soviet Union?