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 ( 59+ )
Otras preguntas
What Biome does the Red Panda live in?
How did Procopius link the cathedral's opulence (wealth) to true Christian values?
Why shouldn't prince Edgar be be king?
where dose Michael Foreman visit for inspiration for his work
15. Which one of the following choices is the closest in size to one serving of meat? A. A coffee mug B. A baseball C. An open palm D. A deck of cards
The shaded figure in the diagram above consists of five squares. It touches the circle at points M, N, P, and Q. The radius of the circle is 15 centimeters. Wh
How many tenths are in one whole
how did paleolithic people acquire food from their natural enviroment
Translate the statement into an equation:the difference of four times a number and eight is equal to twenty-three less than that number
In a particular class of 27 students,17 are men.what fraction of the student in the class are men
