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anonymous

  • one year ago

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.

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  1. anonymous
    • one year ago
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    I am not sure

  2. anonymous
    • one year ago
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    okay thanks for trying

  3. anonymous
    • one year ago
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    @zepdrix @pooja195

  4. pooja195
    • one year ago
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    Ever heard of FOIL?

  5. anonymous
    • one year ago
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    what does that mean

  6. pooja195
    • one year ago
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  7. anonymous
    • one year ago
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    do I have to time them both

  8. pooja195
    • one year ago
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    yes

  9. anonymous
    • one year ago
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    okay so 5x x 3x - 2 x 5 so 15x^2 - 10

  10. pooja195
    • one year ago
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    (5x)(3x)+(5x)(−5)+(2)(3x)+(2)(−5)

  11. anonymous
    • one year ago
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    15x^2 - 25x + 6x - 10

  12. pooja195
    • one year ago
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    Good combine like terms

  13. anonymous
    • one year ago
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    then you add the 25x + 6x right

  14. anonymous
    • one year ago
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    so that will equal -19x so the answer is 15x^2 - 19x -10 correct

  15. pooja195
    • one year ago
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    yes :)

  16. anonymous
    • one year ago
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    thanks for your help

  17. anonymous
    • one year ago
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    I have more if you could help me with them

  18. pooja195
    • one year ago
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    ok :)

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