Question

solve by completing the square.
x^2+8x+____
a) 16 b) 4 c) 64 D)13

r^2-14r+____
a) -7 b) 49 c)-49 D)14

Answer 1

Same thing use the formula (b/2)^2

Answer 2

In x^2+8x+____
your b value is 8

r^2-14r+____

b value: -14

Answer 3

plug values to formula :)

Answer 4

im not good at these things at all thanks soooo much :-*

Answer 5

what did you get as your answers? (if you got them now)

Answer 6

64 for the first one

Answer 7

well..

(8/2)^2=(4)^2

Answer 8

is 4 times 4 64?

Answer 9

no

Answer 10

then what is it? lol

Answer 11

16 right

Answer 12

yes

Answer 13

try the 2nd one

Answer 14

(-7)^2=?

Answer 15

49

Answer 16

good job :)

Answer 17

thank you so much

Answer 18

np. feel free to medal as i do enjoy medals ;p

Answer 19

answer is 16 because...we can write this as x^2+(2*4*x)+(16)=(x+4)^2

Answer 20

how do i do medals

Answer 21

click "best response"

Answer 22

any moar questions??

Answer 23

yeah ill write a new question after i close this one

Answer 24

ok. i'll go help you with that one too when you post it