Question

Solve the equation by completing the square:
x2 + 2x = 3

Answer 1

x^2 + 2x + 1/4 = 3 + 1/4

Answer 2

X²=√X²,X=1 i got this as an answer

Answer 3

i think im completing it right hang on

Answer 4

okay thanks

Answer 5

wait plus 1

Answer 6

x^2 + 2x (+1) = 3 (+1)

Answer 7

then you'll get (x+1)^2 = 4 and that's your answer

Answer 8

i need to find what the two x"s are

Answer 9

its 1 or -3

Answer 10

since (1+1)^2 = 4 and (-3+1)^2 both equal 4

Answer 11

okay i understand now thank you(:

Answer 12

yep np

Answer 13

to find it usually you'd sqrt both sides just remember the answer can be pos or neg and solve

Answer 14

WAITTTTTT

Answer 15

?

Answer 16

12 Answer:
Solve the equation by completing the square:
x2 + 8x = 14

Answer 17

x^2 + (8x) + ? = 14 + ?

Answer 18

you are very smart @funkeemonk3y

Answer 19

then x^2 + 8x + 16 = 14 + 16

Answer 20

then you'd have (x+4)^2 = 30

Answer 21

were do you get 16 from?

Answer 22

note for completing the square its generally a^2x + bx + c to be a complete square c = (b/2)^2

Answer 23

in order to compete the square thats the main concept you must make it into the form (x + a)^2 = #

Answer 24

note that (a+b)^2 = a^2 + 2ab + b^2

Answer 25

gotta go hope this helps

Answer 26

Thank you!!!

Answer 27

HELP

Answer 28

x^2+2x+1/4=3+1/4