Question

Fan n Medal

https://mvusdk12.owschools.com/media/g_alg02_ccss_2014/7/q24224.gif
{-1, 15/2}
{1, 9/2}
{5/2, 3}

Answer 1

Do you have any ideas?

Answer 2

i dont know what to do.......so no

Answer 3

Start on the left side

Answer 4

distributive?

Answer 5

2a-4

Answer 6

Yes

Answer 7

And now go to the other side what can you do so only the top is left?

Answer 8

idk....divide?

Answer 9

im kinda a retard whenit comes to math.srry

Answer 10

Don't say that

Answer 11

You can multiply to the bottom of that side and multiple that same number to the other

Answer 12

the a-4?

Answer 13

Yes

Answer 14

Multiple thAt to both sides so you will have?

Answer 15

2a-16?

Answer 16

No, it would be (a-4)(2a-4)

Answer 17

Foil

Answer 18

i dont multiply them together?

Answer 19

You do it just because they both have more than 1 term

Answer 20

Now you multiple (a-4)(2a-4) firsts outside insides lasts

Answer 21

I dont get it........

Answer 22

What don't you get?

Answer 23

what wuld i muliply together?

Answer 24

Okay so you have a-4 multiplied to the left side the reason why this works and only a-1 is left is because when you divide them you get 1 now multiple a-4 to the other side, so you will multiply (a-4)(2a-4)

Answer 25

So now you have to FOIL

Answer 26

First 2a*a+-4*a+-4*2a+-4(-4)

Answer 27

soooooo............ 2a^2 + (-4a) +(-8a) + 16?

Answer 28

Yes now you can...?

Answer 29

add like terms?

Answer 30

Yes

Answer 31

2a^2 + (-12) +16?

Answer 32

Where's the a?

Answer 33

oh yes -12a

Answer 34

Now?

Answer 35

ummmmm....idk
a-1/2a^2 + (-12a) +16?

Answer 36

Get one side equal to 0

Answer 37

how?

Answer 38

What do you have right now

Answer 39

2a^2 + (-12a) +16

Answer 40

And the other side

Answer 41

a-1

Answer 42

WhAt about the -?

Answer 43

ohh yeaaa i forgot. ita -a-1

Answer 44

Close

Answer 45

-(a-1)

Answer 46

Yes do distribute the - through

Answer 47

so -a-(-1)

Answer 48

?

Answer 49

Yes -a+1 now move that to the other side

Answer 50

2a^2 + (-12a) +16 + a+1?

Answer 51

2a^2 + (-12a) +16 -a+1

Answer 52

Close -1 not plus 1

Answer 53

oh

Answer 54

Wait

Answer 55

-a+1 do opposit to get rid of it so add a and subract 1 2a^2-12a+16+a-1

Answer 56

Make sence?

Answer 57

we wanna get rid of it so we do opposite. yup

Answer 58

Good now add like terms

Answer 59

ummmm 12a^2 + (-11a) +15?

Answer 60

I think I confused you we still just have 2a^2 but otherwise yes so 2a^2-11a+15=0 because you got rid of everything on that side

Answer 61

Do you have a graphing calculators?

Answer 62

nope.......

Answer 63

Okay that's already you'll have to use the quadratic formula than

Answer 64

ok

Answer 65

what is that?lol

Answer 66

Do you know what the quadratic formula is?

Answer 67

no

Answer 68

here come to this website hopefully this will work it will be easier to show than

Answer 69

https://www.twiddla.com/2535300

Answer 70

5/2,3