Math Problem Statement

Simplify. 5 StartRoot 12 EndRoot plus StartRoot 48 EndRoot minus StartRoot 8 EndRoot

Solution

Let's simplify the given expression:

512+4885\sqrt{12} + \sqrt{48} - \sqrt{8}

Step 1: Simplify the Square Roots

We break each square root into its prime factors:

  1. 12\sqrt{12}
    12=4×3=4×3=23\sqrt{12} = \sqrt{4 \times 3} = \sqrt{4} \times \sqrt{3} = 2\sqrt{3} So, 512=5(23)=1035\sqrt{12} = 5(2\sqrt{3}) = 10\sqrt{3}.

  2. 48\sqrt{48}
    48=16×3=16×3=43\sqrt{48} = \sqrt{16 \times 3} = \sqrt{16} \times \sqrt{3} = 4\sqrt{3}

  3. 8\sqrt{8}
    8=4×2=4×2=22\sqrt{8} = \sqrt{4 \times 2} = \sqrt{4} \times \sqrt{2} = 2\sqrt{2}

Step 2: Combine Like Terms

103+432210\sqrt{3} + 4\sqrt{3} - 2\sqrt{2}

(10+4)322(10 + 4)\sqrt{3} - 2\sqrt{2}

1432214\sqrt{3} - 2\sqrt{2}

Since 3\sqrt{3} and 2\sqrt{2} are different radicals, we cannot simplify further.

Final Answer:

14322\mathbf{14\sqrt{3} - 2\sqrt{2}}


Would you like a more detailed breakdown of any step?

Related Questions:

  1. How do you simplify 75+27\sqrt{75} + \sqrt{27}?
  2. What is the process for rationalizing a denominator with square roots?
  3. How do you simplify expressions with cube roots?
  4. What are the properties of square roots that help with simplification?
  5. Can you simplify 50218+38\sqrt{50} - 2\sqrt{18} + 3\sqrt{8}?

Tip:

When simplifying square roots, always look for the largest perfect square factor to extract square roots efficiently.

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Math Problem Analysis

Mathematical Concepts

Square Roots
Simplification of Radicals

Formulas

√a * b = √a * √b
√(a * b) = √a * √b

Theorems

Simplification of square roots by extracting perfect squares

Suitable Grade Level

Grades 7-9