anonymous
  • anonymous
Choose the correct product of (5x + 4)2. 25x2 + 40x + 16 25x2 − 16 25x2 + 16 25x2 − 40x + 16 @Compassionate
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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Compassionate
  • Compassionate
Hello, this is all to the power of two. You want to expand the entire binomial. (5x + 4)(5x + 4) Now use the foil method 25x^2 is the first term, can you do the other 3?
anonymous
  • anonymous
The third one?
Compassionate
  • Compassionate
5x * 5x 5x * 4x 4 * 5x 4 * 4 Multiply these, then add the like terms, and you're done!

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More answers

anonymous
  • anonymous
why 5x * 4x ?
Luigi0210
  • Luigi0210
|dw:1370297035439:dw|
anonymous
  • anonymous
and sooo .. its going to be the first one :) ... i did it but i though i was wrong
Luigi0210
  • Luigi0210
and that's where that 4*5x comes from
Jhannybean
  • Jhannybean
You have the formula \[\large (5x+4)^2\implies (5x+4)(5x+4)\]instead of using the FOIL method, you could use this formula down below, it'll work the same way \[\large a^2 +2ab+b^2\]\[\large (5x)^2+2(5x)(4)+(4)^2\]
Jhannybean
  • Jhannybean
whichever is easier for you. :)
Luigi0210
  • Luigi0210
@unheard where'd you go? -_-
anonymous
  • anonymous
Sorry. I was late for something. But thanks for helping, everyone.

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