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

what is 3/8 times 2/9? Answers: A 5/17 B 5/12 C 1/17 D 1/12
It is about 2508 miles from Orange County in California to Orange County in Florida. With an average speed of 70 miles per hour, about how long will it take to
what does asterisk mean
what part of the city has a similar job to the cell membrane ?
how did the Soviet Union's foreign policy goals contradict one another ?
A cable cord is 78 meters long.Workers cut it into 30 pieces of equal length. How many centimeters long is each piece?
What are the two ideas about the universe did Greek philosophers accept
What's 2/3 times 5/6 times14
What is 1280 billion devided by 47.9%
The maximum energy available for useful work from a spontaneous reaction (A) free energy (B) lattice energy (C) kinetic energy (D) activation energy (E) ionizat