Question

How do I factor x^2 + 12x + 0 using the guess and check method?

Answer 1

take x common and that's it, i guess..

Answer 2

x(x+12)=0
x=0 and x=-12

Answer 3

I don't understand either answer.

Answer 4

I know how to factor using guess and check method, but I don't understand how to do it to this one. I know that I have to find a factor pair of the second term that would add up to the third term, but I can' do that here. So how do I factor this using guess and check method?

x^2 + 12x + 0

Answer 5

@ParthKohli ?

Answer 6

@paki ?

Answer 7

what about quadratic formula... ?

Answer 8

What is the quadratic formula? Well anyway I have to use the guess and check method.

Answer 9

Will someone please help?

Answer 10

You have had two perfectly good answers. If you can factor, as you say, just factor x out of the original equation. Lose the zero. It is is just window dressing.

Answer 11

I don't understand how to do that.

Answer 12

How do I factor x?

Answer 13

I only know how to factor constants.

Answer 14

Okay \( x^2 = x \cdot x\) so your original expression is \( x \cdot x + 12x\)

Answer 15

The only constant is 0. It is nothing. So just drop it.

Answer 16

Ok. I understand that, but how would I use the guess and check method for this? I'm supposed to get an answer that looks like this: (x + a)(x + b)

Answer 17

Factor the x out:

\[ x\cdot x + 12x = x(x+12) \]

If it makes you feel better, you can rewrite x as x + 0, but it is kind of pointless.

\[ x\cdot x + 12x = x(x+12) = (x+0)(x+12)\]

Answer 18

Oh, now I understand.

Answer 19

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Answer 20

S'k