anonymous
  • anonymous
Expand and simplify: (5x + 2)(3x - 5) A. 15x^2 + 23x +10 B. 15x^2 - 10 C. 15x^2 - 4x + 10 D. 15x^2 - 19x my answer: D please show me how to get the answer because my teacher gave me the answer but didn't show how to get it.
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
I am not sure
anonymous
  • anonymous
okay thanks for trying
anonymous
  • anonymous
@zepdrix @pooja195

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pooja195
  • pooja195
Ever heard of FOIL?
anonymous
  • anonymous
what does that mean
pooja195
  • pooja195
1 Attachment
anonymous
  • anonymous
do I have to time them both
pooja195
  • pooja195
yes
anonymous
  • anonymous
okay so 5x x 3x - 2 x 5 so 15x^2 - 10
pooja195
  • pooja195
(5x)(3x)+(5x)(−5)+(2)(3x)+(2)(−5)
anonymous
  • anonymous
15x^2 - 25x + 6x - 10
pooja195
  • pooja195
Good combine like terms
anonymous
  • anonymous
then you add the 25x + 6x right
anonymous
  • anonymous
so that will equal -19x so the answer is 15x^2 - 19x -10 correct
pooja195
  • pooja195
yes :)
anonymous
  • anonymous
thanks for your help
anonymous
  • anonymous
I have more if you could help me with them
pooja195
  • pooja195
ok :)

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