ss948054
ss948054
08-08-2017
Mathematics
contestada
Solve by completing the square: x^2+15=8x
Respuesta :
sheheryar91
sheheryar91
20-08-2017
x^2+15=8x
x^2-8x=-15
x^2 - 2 (x)(4) =-15
adding 16 on both sides
x^2 - 2 (x)(4) +16=-15+16
x^2 - 2 (x)(4) + 4^2= 1
(x-4)^2=1
taking square root on bothsides x-4 = +-1
so x-4=1 or x-4=-1
x-5 or x=3
Answer Link
VER TODAS LAS RESPUESTAS ( 69+ )
Otras preguntas
6= Divide[x + 2,3] (Step by step)
1. Cross a homozygous tall plant (TT) with a homozygous short plant (tt). + TTT+T + T+++ 50 What percentage of offspring will be tall? What percentage of offspr
How do the attitudes toward death among elderly people compare to the attitudes of younger age groups?
Refer to the number line. Find the coordinate of point X such that the ratio of BX to XF is 3:2. BC
Accounts Payable may sometimes include non-current or long-term payables in certain circumstances. True False
Many company employees work from home on a full-time basis. what technology do they commonly use to communicate securely with the organization's network?
If an inductor carrying a 1.80 a current stores an energy of 0.250 mj, what is its inductance? mh (b) how much energy does the same inductor store if it carries
WILL MARK BRIANIEST Pls solve the check mark problem pls pls pls pls
Which of the following methods is used to strengthen clay when making ceramics?
The rate of effusion of nh3 is 2.40 mole/min. what would be the rate of effusion of co2 under the same conditions? a. 1.49 b. 6.21 c. 0.93 d. 2.40 e. 0.24
