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bombshellbri

  • 3 years ago

1. Multiply. (3x – 5)2 a. 9x2 – 30x + 25 b. 6x2 – 10 c. 9x2 – 25 d. 9x2 – 15x + 25 2. Multiply. (x + 3)(x – 4) a. x2 – 7x – 12 b. x2 – x – 12 c. x2 + x – 12 d. x2 – 12

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  1. love_math
    • 3 years ago
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    (a-b)^2=a^2-2ab+b^2

  2. Compassionate
    • 3 years ago
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    You first multiple inside parenthesis. 2 * 3x 2 * -5

  3. Compassionate
    • 3 years ago
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    For the other one use the FOIL method: First, Inner, outer, Last.

  4. love_math
    • 3 years ago
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    it is square not 2

  5. bombshellbri
    • 3 years ago
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    @love_math is right. it is squared.

  6. Compassionate
    • 3 years ago
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    I'm aware.

  7. bombshellbri
    • 3 years ago
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    why;d you erase your first comment?

  8. Compassionate
    • 3 years ago
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    9x^2 - 25 x^2 - x - 12

  9. bombshellbri
    • 3 years ago
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    a. 9x2 – 30x + 25 was the answer

  10. Compassionate
    • 3 years ago
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    No it wasn't. \[(3x - 5)^2\] \[3x^2 - 25\] This polynomial is not factorable with real numbers. Your test is messed up. So maybe it wants: \[9x^2 - 25\] Again, this polynomial isn't factorable with real numbers. Your test is wrong.

  11. bombshellbri
    • 3 years ago
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    sure.

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