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Concept Check - in the middle of the variables Determine if...

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Concept Check For example: factor 4x 2 -36. First you need to factor out the 4. When you do that the equation becomes 4(x 2 -9). Next put it into the format of a 2 - b 2 = (a + b)(a - b). There should always be a minus sign as well as a positive sign. They must also be squares. Now there is a minus sign
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Unformatted text preview: in the middle of the variables. Determine if x 2 and 9 are both squares which they are. The problem will now look like this (x+3)(x-3)....
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