Math

QuestionSimplify the expression: 75+227\sqrt{75}+2 \sqrt{27}.

Studdy Solution

STEP 1

Assumptions1. We are asked to simplify the expression in surds form. . A surd is a square root or other root symbol.
3. We can simplify surds by factoring the number under the root into its prime factors.

STEP 2

First, we need to simplify each surd separately. Let's start with 75\sqrt{75}. We can do this by finding the prime factorization of75.

STEP 3

The prime factorization of75 is 3×523 \times5^2. So, we can write 75\sqrt{75} as 3×52\sqrt{3 \times5^2}.

STEP 4

We can simplify the surd by taking the square root of 2^2 out of the square root.
75=3×2=3\sqrt{75} = \sqrt{3 \times^2} =\sqrt{3}

STEP 5

Next, we need to simplify the surd 2272\sqrt{27}. We can do this by finding the prime factorization of27.

STEP 6

The prime factorization of27 is 333^3. So, we can write 2272\sqrt{27} as 2332\sqrt{3^3}.

STEP 7

We can simplify the surd by taking the square root of 323^2 out of the square root.
227=233=2×33=632\sqrt{27} =2\sqrt{3^3} =2 \times3\sqrt{3} =6\sqrt{3}

STEP 8

Now that we have simplified each surd, we can add them together.
75+227=53+63\sqrt{75} +2\sqrt{27} =5\sqrt{3} +6\sqrt{3}

STEP 9

Since the square root parts are the same, we can add the coefficients together.
53+63=1135\sqrt{3} +6\sqrt{3} =11\sqrt{3}So, 75+227\sqrt{75}+2 \sqrt{27} simplifies to 11311\sqrt{3}.

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