Suspicious Activity

Suspicious Activity
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  • My teacher told us to find another way to factor 3x3 +13x+4 but there is no GCF!
  • I heard math is difficult, what's up?
  • I'm not sure how the school cop would feel about that
  • There is one more way to factor that...it's called the...illegal move.
  • So 3 times 4 to get x2+13x+12, then what?
  • It's not actually illegal...I hope anyway. Here: since there's no GCF, first you multiply coefficient A by C
  • So after all of that, the factors are (x+12/4) or (x+3)(x+1/3)? That doesn't multiply into my original expression!
  • Then you use the diamond method to get factors (x+12)(x+1) and use the coefficient as the denominator for both and finally simplify
  • So the final factors are (3x+1)(x+4) which multiplies to my expression! The illegal move makes sense now
  • Ah, when you simplify a fraction <1, you put the coefficient in front of x in the factors meaning it would be 3x+1
  • Did I hear something about an illegal move?!
  • Uh oh...
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