emm1501
emm1501
10-09-2016
Mathematics
contestada
factoring by completing the square: 3k^2+18k+15=0
Respuesta :
texaschic101
texaschic101
11-09-2016
3k^2 + 18k + 15 = 0
3k^2 + 18k = -15
k^2 + 6k = - 5
k^2 + 6k + 9 = -5 + 9
(k + 3)^2 = 4
k + 3 = (+-) sqrt 4
k = -3 (+-) sqrt 4
k = -3 + 2 = -1
k = -3 - 2 = -5
so k = -1 and -5
Answer Link
VER TODAS LAS RESPUESTAS ( 73+ )
Otras preguntas
a rigid tank contains an ideal gas at 40°c that is being stirred by a paddle wheel. the paddle wheel does 200 kj of work on the ideal gas. it is observed that t
Which of the following is a measurable goal? O To exercise four times a week To exercise on a bicycle O To exercise with four friends To exercise this week
Which of the following best completes the chart below? * Captionless Image Discouraged public meetings in favor of quiet, solitary prayer Spurred governments to
Calculate the distance between Point A (-8,-2) and Point B(6,-1) Leave the answer in radical form.
learning to speak fluently in a foreign language: multilingual speech synthesis and cross-language voice cloning
What path do eggs take before during and after fertilization?
janice and jarrod are married and live in a community property state. janice is not employed outside the home, and jarrod earns a salary of $98,000. during the
ASSOCIATIVE PROPERTIES COMMON CORE ALGEBRA I HOMEWORK FLUENCY Combine the expressions below. Replace subtraction by addition of opposites, if needed. (a) 7x+3+6
Repeating an entire experiment more than once is Replication Trial Research Experiment
Give two examples of poverty
