Question

How do I factor this expression?
Someone please explain me

Answer 1

\[v ^{2}+5v-36\]

Answer 2

What factorizations are there of 36?

1 x 36
2 x 18
3 x 12

Any more?

Answer 3

5 x 7

Answer 4

?? 5*7 = 35 That's not 36.

Answer 5

sorry

Answer 6

4 x 9

Answer 7

6 x 6

Answer 8

Okay, any of those factorizations have a difference of 5?

1*36 ==> 36-1 = 35 That's not 5
2*18 ==> 18-2 = 16 That's not 5
3*12 ==> 12-3 = 9 That's not 5, but we do seem to be getting closer.

Answer 9

I think is 4 x 9

Answer 10

There you go.

Fill in the blanks (v + ___)(v - ___)

Answer 11

(v-4)(v+9)

Answer 12

I think you're done. Good work.

Answer 13

Thanks
Would you help me with another one please?

Answer 14

You can SHOW me one.

Answer 15

Ok

Answer 16

\[k ^{2}+5kn-84n ^{2}\]

Answer 17

Same deal:

Fill in the blanks

(k + ____n)(k - ____n)

Answer 18

7 x 8
(k-7)(k+12)

Answer 19

Is it right?

Answer 20

(k-7n)(k+12n)

Answer 21

What's 7*8 doing in there?

You tell me if it's right. Multiply it back out and see if you recover the original.

Answer 22

7 x 12
sorry

Answer 23

I, hereby, dub thee the Factoring Wizard.

Answer 24

Thanks

Answer 25

That's it