Question

CAN ANYONE HELP? :D

Answer 1

I can complete the square but after that I don't know what to do.

Answer 2

this is the complete square

Answer 3

What is the form? @dan815

Answer 4

first divide the coefficient of x by 2
this will tell you what a is in ( x + a)^2
can you do that?

Answer 5

we have x^2 + 12x + 31 = 0

what is the coefficient of x in this equation?

Answer 6

what multiplies x?

Answer 7

hello? r u there?

Answer 8

I am now, sorry

Answer 9

@welshfella

Answer 10

i have the x, i just need to know the form

Answer 11

@dan815 @Nnesha @incomplte @TheSmartOne

Answer 12

x^2 + 12x + 31 = 0

divide the 12 by 2 = 6

(x + 6)^2 - 36 + 31 = 0
(its -36 because (x + 6)^2 = x^2 + 12x + 36)

(x + 6)^2 - 5 = 0
(x + 6)^2 = 5

now you need to take the square root of both sides

Answer 13

remember that there is a positive and negative square root

Answer 14

the solution set is {-6+sqrt5 , -6 - sqrt5}

Answer 15

the form is (x + 6)^2 = 5