anonymous
  • anonymous
Simplify (3x^2 + 2x + 1) + (5x +3). Could someone walk me through how to do this?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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anonymous
  • anonymous
3x^2 +2x +1 + 5x + 3 You have 2x and 5x as like terms so they both become 7x So now you have 3x^2 + 7x + 1 + 3 1 and 3 go together, they become 4 So now you have 3x^2 +7x + 4 Now you need to factor it. (3x+4)(x+1) How do I factor that? 3 and 4 become 7. Right? So 3x and x are 3x^2 and 3x + 1 = 3x. And then 4x stays 4x and 4 x 1 becomes 4. So now you have: 3x^2 + 3x + 4x +4, which is 3x^2 + 7x +4 That is your result.
anonymous
  • anonymous
(3x^2 + 2x + 1) + (5x +3) just add like terms 3x^2 + 7x +4
anonymous
  • anonymous
Thank you both!

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anonymous
  • anonymous
No problem! :)
anonymous
  • anonymous
It said simplify btw. I dont think you have to factor.
anonymous
  • anonymous
Oh okay, in case if factoring is needed I just put that up there.

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