evank1
evank1
12-03-2018
Mathematics
contestada
x^2 + 18x + 50 = 9
Solve by completing the square
Respuesta :
tynollette
tynollette
12-03-2018
step 1: both sides subtract 50: x²+18x=-41
step 2: both sides add (1/2 of 18)², which is 81: x²+18x+81=-41+81
step 3: make the square: (x+9)²=40
step 4: square root both sides: x+9=√40 or x+9=-√40
simplify: x=-9+2√10 or x=-9-2√10
Answer Link
VER TODAS LAS RESPUESTAS ( 41+ )
Otras preguntas
Which of the following is a concept of the cell theory? A. Only higher organisms are composed of cells. B. A cell is the basic structural and functional unit of
One of your summer lunar space camp activities is to launch a 1210 kg1210 kg rocket from the surface of the Moon. You are a serious space camper and you launch
A thin, very light wire is wrapped around a drum that is free to rotate. The free end of the wire is attached to a ball of mass m. The drum has the same mass m.
PLEASE CHECK THIS WILL MARK BRAINLIEST
write an equation that represents the line using exact numbers
Two trains are 360 miles apart at 7 a.m. and are traveling on the same track, in opposite directions, moving toward one another. One train is traveling at 40 mi
Please help me with this question. I am struggling
In preparing a company's statement of cash flows for the most recent year, the following information is available: Loss on the sale of equipment $14,400, Purch
The cytoplasm is the fluid within the cell, comprised of: A. The nucleus and phospholipids B. Cytosol and organelles C. Organelles and phospholipids D. Cytosol
. Leanne is being treated for depression after a breakup with her boyfriend. Her therapist points out that her thoughts, and not the situation itself, are the c
