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ihatealgebrasomuch

  • 2 years ago

(1/3)(3x^2+12x+9)(x+3) how do i solve this???????

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  1. chemENGINEER
    • 2 years ago
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    there is no equals sign so this is not even an equation bro

  2. ihatealgebrasomuch
    • 2 years ago
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    im trying to find the volume of a rectangular pyramid... that whole expression equals v

  3. chemENGINEER
    • 2 years ago
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    so then do you have any input values for x?? as it sits (1/3)(3x^2+12x+9)(x+3)=V can only be solved it you input an x. maybe you just want to find the roots..... idk you need to be more specific

  4. ihatealgebrasomuch
    • 2 years ago
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    Find an expression for the volume of a rectangular pyramid whose base has an area of 3x^2 + 12x +9 square feet and whose height is x + 3 feet.

  5. satellite73
    • 2 years ago
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    divide each term in the first expression by 3, because of the \(\frac{1}{3}\) out front, should be easy enough because each term is divisible by \(3\)

  6. satellite73
    • 2 years ago
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    when you are done, you have to multiply \[(x^2+4x+3)(x+3)\] which requires 6 multiplications via the distributive property

  7. satellite73
    • 2 years ago
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    this part is a pain, but not really that bad with some practice first of all multiply everything in the first parentheses by \(x\) which really just means raising the power by 1 then multiply everything in the first expression by \(3\) and then combine like terms

  8. satellite73
    • 2 years ago
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    once you get the answer post and someone will check

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