Explore Westonci.ca, the premier Q&A site that helps you find precise answers to your questions, no matter the topic. Discover comprehensive solutions to your questions from a wide network of experts on our user-friendly platform. Our platform offers a seamless experience for finding reliable answers from a network of knowledgeable professionals.

[tex]\sqrt 18- \sqrt 2[/tex]

Sagot :

The answer is 2√2

√18 - √2
3 √2 - √2 = 2√2

Answer:

2√2

Step-by-step explanation:

18 factors down to 3 * 3 * 2

The rule for taking the square root of a number factored into primes is if they are in pairs, take one of the pairs out of the root sign and throw the other one away. Any odd number of primes always has one prime left under the root sign.

3√2 - √2    

Root 2 is a common factor on either side of the minus sign.

√2*(3 -1)

√2 * 2