Question

4) WILL GIVE MEDAL AND FAN!

Factor.

x2 + 8x + 16

a. (x – 8)2

b. (x + 8)2

c. (x – 4)2

d. (x + 4)2

Answer 1

hello again xD

Answer 2

haha hey!

Answer 3

redy :P

Answer 4

so we have (x+ ) (x+ ) you understand why correct :P

Answer 5

again find the sqr root of 16

Answer 6

yup!

Answer 7

4 is the sqr root of 4

Answer 8

ok!

Answer 9

add like terms first

Answer 10

so we get (x+4) (x+4)

Answer 11

right!

Answer 12

or (x+4)^2

Answer 13

D xD

Answer 14

C

Answer 15

D.

Answer 16

D ? or C ? lol

Answer 17

D

Answer 18

D has not negatives

Answer 19

remeer what i said about double negatives

Answer 20

lol wait it came out wrong i mean lets do the math here one sec

Answer 21

xD

Answer 22

also keep in mind a negative times a negative equals a positive

Answer 23

you can check my match i wrote it all out in the chat :P

Answer 24

haha yea!

Answer 25

yea but you would have a negative and a possitive

Answer 26

something like x2+8x-16

Answer 27

which is not what we want

Answer 28

we only want possitives so we go with d

Answer 29

so D?

Answer 30

yes :)

Answer 31

@brae choose D and tell me if its right

Answer 32

I guarantee 100% its not

Answer 33

here just to ease our worries ill work out c :P

Answer 34

(x-4) (x-4)

Answer 35

your forgetting to mention the \[^{2}\]

Answer 36

lol the ^2

Answer 37

x2-4x-4x+8

Answer 38

Ok keep going

Answer 39

the ^2= double parenthesis so x-4 x-4

Answer 40

Here ill explain it so you can even understand it

Answer 41

x is the variable so you have to keep that in the problem

Answer 42

x^2-8x+16

Answer 43

x2-4x-4x+16*

Answer 44

as i said

Answer 45

double negatives always equals + and -

Answer 46

its like a whole activity so they only time I can tell if its right is if i complete the whole lesson

Answer 47

x^2-8x+16

x^2-4x-4x+16 ... see note below

(x^2-4x)+(-4x+16)

x(x-4)-4(x-4)

(x-4)(x-4)

(x-4)^2


So x^2-8x+16 completely factors to (x-4)^2


Note: we want to find two numbers that multiply to 16 and add to -8. These two numbers are -4 and -4. So we break -8x into -4x-4x and then factor by grouping.

Answer 48

Ok im done here @brae its up to you to choose cya

Answer 49

if we wanted ^2-8x+16 you would be right

Answer 50

but we want x^2+8x+16

Answer 51

Ok @brae choose your answer and come back and post the right answer if i am right you never compete against me again @jennyrlz ;)

Answer 52

i am sure i am correct bu brae as he said it is up to you to pick ^.^

Answer 53

ohh ok this is hard!!

Answer 54

pick one and after you submit it tell us what the answer was

Answer 55

xD

Answer 56

but i want to get it correct!! lol

Answer 57

@misty1212 can you settle this discusion xD

Answer 58

i would personally go with D

Answer 59

but it is up to you :P

Answer 60

ummmmmmmm

Answer 61

I have one more question that I have to do then i can submit it

Answer 62

ok post it

Answer 63

here if you want :)

Answer 64

that way we can end this, i am dying to know xD

Answer 65

the answer is either c or d

Answer 66

lol @jennyrlz get ready to be disappointed and to ever compete or deny me again :)

Answer 67

if there isn't a negative in the equations how would it be c Q.Q, Doube negative gives a positive and a negative :)

Answer 68

never * ooops

Answer 69

we will see @Here_to_Help15 :3

Answer 70

Or how bout this lets change the deal

Answer 71

Ill message you to see if its agreeable

Answer 72

agree on what

Answer 73

Its our little agreement

Answer 74

if i am wrong i will medal you here to help :)

Answer 75

do u guys know this one?

Factor completely.
4u2 – 28u + 49

Answer 76

look a plus and minus

Answer 77

you know what this means?

Answer 78

This wasnt your last question xD

Answer 79

double negative, what do you know :3

Answer 80

a. (2u – 4)2

b. (2u – 7)2

c. (4u + 7)2

d. 2(2u – 7)2

Answer 81

Its (2u-7)^2

Answer 82

we can immediately rule out c

Answer 83

ok!

Answer 84

sorry for that direct answer i just want to proove @jennyrlz wrong :)

Answer 85

prove*

Answer 86

i dont have the time to work out so trust him :P

Answer 87

its no problem i have to go soon so i want to know to xD

Answer 88

lol

Answer 89

what is taking him xD

Answer 90

i want to find out :P

Answer 91

So long i know huh

Answer 92

so whats the answer for 5 again?

Answer 93

is that the last one?

Answer 94

or the one we were discussing?

Answer 95

that was the last one

Answer 96

um i think he said b

Answer 97

i dont have the time to work it out :/