Question

Solve x2 − 8x + 5 = 0 using the completing-the-square method.

x = negative four plus or minus the square root of eleven
x = four plus or minus the square root of eleven
x = negative four plus or minus the square root of five
x = four plus or minus the square root of five

Answer 1

The Answer is b right?

Answer 2

dd

Answer 3

Correct! :)

Answer 4

can you help me with one more?

Answer 5

@misssunshinexxoxo

Answer 6

x = -b + - square root b^2 - 4ac/ 2a

x = -8 + - square root 8^2 - 4 (1) (-5) / 2 (1)

x = -8 + - square root 64 + 20/ 2

x = -8 + - square root 84/ 2 = -8 + - square root 4 * 21/ 2 = -8 + - 2 * square root 21 / 2

x = 2 ( -4 + - square root 21 ) / 2

x = -4 + - square root 21

Answer 7

Using the completing-the-square method, find the vertex of the function f(x) = 5x2 + 10x + 8 and indicate whether it is a minimum or a maximum and at what point.

Maximum at (1, 8)
Minimum at (1, 8)
Maximum at (–1, 3)
Minimum at (–1, 3)

Answer 8

I place D

Answer 9

Yes correct again! :) I'm taking algebra 2 FLVS also

Answer 10

haha what module

Answer 11

In module 8 right now did it under 16 weeks

Answer 12

when did you start? I started 2 weeks ago haha and I am on Module 3

Answer 13

@misssunshinexxoxo

Answer 14

Started last month feel free to message me

Answer 15

Well I plan on finishing it during the summer What is the hardest module in your perspective?

Answer 16

@misssunshinexxoxo