Question

x^2+3x-4
Factoring Trinomials
MEDAL REWARDED!!

Answer 1

I got (x+4)(x+4)
Correct?

Answer 2

@jim_thompson5910
@melissaholmes

Answer 3

hi!

Answer 4

No, sorry. (x+4)(x-1)

Answer 5

Can you show me how you get it?

Answer 6

sure

Answer 7

Hi @MelissaHolmes ! :D
How was your Valentine's Day?

Answer 8

4-1 has to equal 3, and 4*-1 has to equal -4

Answer 9

Okay

Answer 10

valentine's day was ok... didn't do much...

Answer 11

To factor x^2+3x-4, you need to find two numbers that

a) multiply to -4 (last term)

AND

b) add to 3 (middle coefficient)

Answer 12

So Fullerene was correct?

Answer 13

These two numbers are 4 and -1

4*(-1) = -4
4 + (-1) = 3

That means x^2+3x-4 factors to (x+4)(x-1)

The order of the factors does not matter. So we can also say (x-1)(x+4)

Answer 14

Okay thanks!

Answer 15

good job @Fullerene and @jim_thompson5910 :D

Answer 16

They sure did! :D

Answer 17

Thanks!

Answer 18

Can you help me with another one?

Answer 19

x^2+8x+16

Answer 20

find two numbers that

a) multiply to 16 (last term)

AND

b) add to 8 (middle coefficient)

Answer 21

I got (x+4)(x+4)
Is that correct?

Answer 22

Good, x^2+8x+16 factors to (x+4)(x+4)


You can write that as (x+4)^2

Answer 23

Okay thanks!

Answer 24

np

Answer 25

Can you help me with several more? thanks in advance.

Answer 26

x^2-7x-8

Answer 27

yeah

Answer 28

I got (x-1)(x+8)
Is it correct?

Answer 29

(x - 8)(x + 1) actually

Answer 30

Is it @jim_thompson5910 ?

Answer 31

MelissaHolmes is correct

notice how -8 + 1 = -7

Answer 32

Oh okay, thanks again!

Answer 33

yay! i got it right! :D

Answer 34

Good job! :D

Answer 35

whereas, your answer expands out to x^2 + 7x - 8 since -1 + 8 = 7

Answer 36

Thanks!

Answer 37

x^2-10x+25?

Answer 38

I got (x-5)(x-5)

Answer 39

yeah... i think thats right :D

Answer 40

Is it @jim_thompson5910 ?

Answer 41

yep or \(\Large (x-5)^2\) works too

Answer 42

Thanks again, both of you!

Answer 43

x^2+4x+4?

Answer 44

I got (x+2)(x+2)

Answer 45

good

Answer 46

Thanks!

Answer 47

x^2-4x-12
Is it (x-2)(x+6)?

Answer 48

(x - 6)(x + 2)... i think

Answer 49

@jim_thompson5910
@MelissaHolmes

Answer 50

Okay thanks!

Answer 51

:D good job @31356! :)

Answer 52

Thanks!

Answer 53

anytime! :D

Answer 54

x^2+10x+25
Is it (x+5)(x+5)

Answer 55

@MelissaHolmes

Answer 56

yup! :D

Answer 57

Yea!

Answer 58

:D

Answer 59

x^2-8x+16
Is it (x-4)(x-4)

Answer 60

yup again :D

Answer 61

Yea!

Answer 62

x^2-4x-12?
Is it (x-2)(x+6)?

Answer 63

(x - 6)(x + 2) actually..... close, though. XD

Answer 64

Oh okay, thanks!

Answer 65

yw :D

Answer 66

No more questions left! :D

Answer 67

Ok! :D :)

Answer 68

:D

Answer 69

x^2+4x-12
Sorry, need help, forgot this question. lol
@MelissaHolmes

Answer 70

ok!

Answer 71

so what did u get?

Answer 72

:D, thanks for always helping me! :)

Answer 73

I am stuck on this one.

Answer 74

ya, you're my friend... friends help each other out...

Answer 75

Yes, indeed, my friend, lol

Answer 76

and ok... i see what u mean... give me a sec to figure this one out...

Answer 77

Ok

Answer 78

does this thing have answer choices?

Answer 79

No

Answer 80

:(

Answer 81

hmmm...

Answer 82

OH!!!!
(x + 6)(x - 2)

Answer 83

Yea! Thanks!

Answer 84

:D

Answer 85

you are very welcome! :D

Answer 86

My pleasure!