Math question--Polynomials

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So dd has a weird punnet square-like representation of a polynomial expression.

She has to figure out which expression the box-thing represents.

Both have the same "answer" but are FOILed differently.

OMG--are you following me?

So how do you "unfoil" something?

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Is it something like this?

2x          3

---------------------

3x|   6x^2    |  9x

_|________|____|

-4 |   -8x      |  -12

|________|____

so it's 2x +3   times 3x-4, and when you add what is in the boxes, it's 6x^2  +x -12

If it's not something like this I have no idea. But when I've seen this done, it does look like a punnet square.

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Look up factoring.

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You can find videos of the box method on youtube--lots of them. I think the box method makes more sense than FOIL. I teach students both ways though.

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Box method here, as well.  Ds and I watched countless videos on YouTube until he found one that "spoke" to him and his learning style.

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