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kimblack

  • 3 years ago

What is the simplest form of the expression? sqrt20+sqrt45-sqrt5

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  1. across
    • 3 years ago
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    Try and find the prime-power decomposition of each number.

  2. kimblack
    • 3 years ago
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    idk what that is

  3. kimblack
    • 3 years ago
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    5?

  4. across
    • 3 years ago
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    That is, the number \(20\) has prime-power decomposition \(2^2\cdot5\).

  5. across
    • 3 years ago
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    The number \(45\) has prime-power decomposition \(3^2\cdot5\).

  6. kimblack
    • 3 years ago
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    i figured it out.. (:

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