Question

what value completes the square for the expression x^2+14x

Answer 1

i got
x^2 = 14x
(x+7)(x+7)
x = 7
correct or ....?

Answer 2

take half of the 14 (the x coefficient), then square it

Answer 3

ok . :o

Answer 4

still dont know what ro do .... thanks for trying to help though ill just skip this.

Answer 5

what happens when you take half of 14?

Answer 6

its 7

Answer 7

square that and you get ?

Answer 8

7^2

Answer 9

which is what

Answer 10

49

Answer 11

so that's what you need to have it be a perfect square

Answer 12

if you add on 49, you will get

x^2 + 14x + 49

which factors to (x+7)^2

Answer 13

ohhh ok

Answer 14

thank you