Math Problem Statement

Simplify, give the exact answer 3√12 + √16 3 − √27 + √27 3

Solution

Let's simplify the given expression step by step:

312+16327+2733\sqrt{12} + \frac{\sqrt{16}}{3} - \sqrt{27} + \frac{\sqrt{27}}{3}

Step 1: Simplify each term

  • First term: 3123\sqrt{12}

We can break 12\sqrt{12} into prime factors: 12=4×3=23\sqrt{12} = \sqrt{4 \times 3} = 2\sqrt{3} Now multiply by 3: 312=3×23=633\sqrt{12} = 3 \times 2\sqrt{3} = 6\sqrt{3}

  • Second term: 163\frac{\sqrt{16}}{3}

Since 16=4\sqrt{16} = 4, we have: 163=43\frac{\sqrt{16}}{3} = \frac{4}{3}

  • Third term: 27\sqrt{27}

We can break 27\sqrt{27} into prime factors: 27=9×3=33\sqrt{27} = \sqrt{9 \times 3} = 3\sqrt{3}

  • Fourth term: 273\frac{\sqrt{27}}{3}

We already know that 27=33\sqrt{27} = 3\sqrt{3}, so: 273=333=3\frac{\sqrt{27}}{3} = \frac{3\sqrt{3}}{3} = \sqrt{3}

Step 2: Combine all terms

Now, we combine all the simplified terms: 63+4333+36\sqrt{3} + \frac{4}{3} - 3\sqrt{3} + \sqrt{3}

Combine the 3\sqrt{3} terms: 6333+3=(63+1)3=436\sqrt{3} - 3\sqrt{3} + \sqrt{3} = (6 - 3 + 1)\sqrt{3} = 4\sqrt{3}

Thus, the expression becomes: 43+434\sqrt{3} + \frac{4}{3}

Final Answer:

43+434\sqrt{3} + \frac{4}{3}

This is the simplified exact answer.

Would you like more details on any step or have other questions? Here are a few related questions for further practice:

  1. How do you simplify expressions with square roots involving prime factorization?
  2. What is the distributive property, and how does it apply to expressions with square roots?
  3. Can you simplify 50+92\sqrt{50} + \frac{\sqrt{9}}{2}?
  4. How do you handle fractional square roots, like 165\frac{\sqrt{16}}{5}?
  5. What is the difference between simplifying an expression and evaluating it numerically?

Tip: Always factor numbers under square roots to simplify them before performing further calculations!

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Math Problem Analysis

Mathematical Concepts

Simplification of Radicals
Basic Arithmetic Operations
Prime Factorization

Formulas

√(a × b) = √a × √b
Simplify terms: ax + bx = (a + b)x

Theorems

Properties of Square Roots
Distributive Property

Suitable Grade Level

Grades 8-10