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anonymous

  • 5 years ago

Megan factored the expression 18x^2-57+35 as (6x-7)(3x-5). But when Jacob applied the FOIL principle and multiplied out (6x-7)(3x-5), he got 18x^2-51x+35; thus, Megan's solution does not appear to check. Why is that? Please help Megan to understand this better. Explain your reasoning and correctly factor the original expression, if possible. If the expression is prime, so state this.

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  1. anonymous
    • 5 years ago
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    lolol Megan so silly! She got all the right numbers, but combined them wrong!!! \[6x \times 3x = 18x \] \[(-5) \times (-7) = 35 \] But she got the combinations of 6x and -7, and 3x and -5 wrong.

  2. anonymous
    • 5 years ago
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    18x^2 *

  3. anonymous
    • 5 years ago
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    what is 18x^2

  4. anonymous
    • 5 years ago
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    6x multiplied by 3x; I was correcting a typo in my previous message.

  5. anonymous
    • 5 years ago
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    oh sorry i see now.

  6. anonymous
    • 5 years ago
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    i saw that too

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