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mikaa_toxica13

  • 3 years ago

Choose the correct simplification of the expression (−2x + 4y)(3x − 7y). −6x^2 − 2xy − 28y^2 6x^2 + 26xy − 28y^2 −6x^2 + 26xy + 28y^2 −6x^2 + 26xy − 28y^2

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  1. skullpatrol
    • 3 years ago
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    Any ideas?

  2. skullpatrol
    • 3 years ago
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    What have you tried?

  3. mikaa_toxica13
    • 3 years ago
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    i have no idea. and i jus went through something big so my mind isnt even on math right now.

  4. skullpatrol
    • 3 years ago
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    Have you heard of the FOIL method?

  5. mikaa_toxica13
    • 3 years ago
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    no sorry

  6. skullpatrol
    • 3 years ago
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    What grade/age level are you?

  7. mikaa_toxica13
    • 3 years ago
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    16/10

  8. skullpatrol
    • 3 years ago
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    Anyway FOIL is a way to remember how to do these type of questions.

  9. skullpatrol
    • 3 years ago
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    |dw:1359665572616:dw|

  10. skullpatrol
    • 3 years ago
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    |dw:1359665830805:dw|

  11. skullpatrol
    • 3 years ago
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    @mikaa_toxica13 Are you still there?

  12. mikaa_toxica13
    • 3 years ago
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    yes sorry. im having some family drama right now.

  13. skullpatrol
    • 3 years ago
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    I'm sorry to hear that, but I'm trying to teach you the FOIL method. Please stop me and ask any questions.

  14. skullpatrol
    • 3 years ago
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    Each letter in the word FOIL stands for one step in the method.

  15. mikaa_toxica13
    • 3 years ago
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    okay no problem.

  16. skullpatrol
    • 3 years ago
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    I just showed what the "F" in FOIL means. Did you follow that?

  17. mikaa_toxica13
    • 3 years ago
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    i think so

  18. skullpatrol
    • 3 years ago
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    Are you unsure at all?

  19. mikaa_toxica13
    • 3 years ago
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    not too sure what a binomial is

  20. mikaa_toxica13
    • 3 years ago
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    i have to get off for a few minutes. but u can continue to explain and i will write back when im back online. if u want.

  21. skullpatrol
    • 3 years ago
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    The word "binomial" comes from the two parts: "bi" which means two because it has two terms like (a +b) and "nomial" which means name or just term.

  22. skullpatrol
    • 3 years ago
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    (−2x + 4y)(3x − 7y) multiply the First terms of the binomials (-2x)(3x) = -6x^2

  23. skullpatrol
    • 3 years ago
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    (-2x + 4y) is a binomial and (3x -7y) is a binomial, so the FOIL method works when you are multiplying two binomials. Recall each of -2x, 4y, 3x, and -7y are called terms, right?

  24. skullpatrol
    • 3 years ago
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    |dw:1359668344081:dw|

  25. skullpatrol
    • 3 years ago
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    |dw:1359668671831:dw|

  26. skullpatrol
    • 3 years ago
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    multiply the first term of each binomial by the last term of the other and add these products: "O" stands for Outer terms and "I" stands for inner terms

  27. skullpatrol
    • 3 years ago
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    The last letter in the word "FOIL" is L and it stands for multiply the Last terms of the binomials.

  28. skullpatrol
    • 3 years ago
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    |dw:1359669193650:dw|

  29. skullpatrol
    • 3 years ago
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    You can put all the letters together and get the answer now. Good luck with your studies.

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