# math

posted by .

3square root of 18 + 3 square root of 12 + 2square root of 27 =

• math -

3√18 + 3√12 + 2√27
= 9√2 + 6√3 + 6√3
= 9√2 + 12√3

• math -

-3square root of 2+ 3square root of 20-3square root of 8

• math -

18= 2x3x3
12=2x2x3
27=3x3x3
3√2x3x3+3√2x2x3+2√3x3x3
3x3√2+3x2√3+2x3√3
9√2 + 6√3 + 6√3
9√2 + 12√3

• math -

-2√20 + 2√18 - 2√5

## Similar Questions

1. ### Math

Just need some help... Directions: Multiply or raise to the power as indicated... Then simplify the result. Assume all variables represent positive numbers. 1. 5(square root of 6) times two-thirds(square root of 15)= 3 one-third (square …
2. ### algebra 1

What is the area of a square with the dimension 1+square root of 3?
3. ### Algebra 1

-square root of 27 - 3square root of 45-square root of 20+2square root of 45
4. ### Algebra

Rationalize each expression by building perfect nth root factors for each denominator. Assume all variables represent positive quantities. I don’t understand how to compute these. Also I don’t have the square root sign so I typed …
5. ### Math simplifying mixed radicals

Please help me simplify these following mixed radicals:: and show me how you did it cause I need to learn : I don't know how to type a square root sign so I just wrote square root: 2 square root 48 3 square root 81 6 square root 12 …
6. ### Math simplifying mixed radicals

Please help me simplify these following mixed radicals:: and show me how you did it cause I need to learn : I don't know how to type a square root sign so I just wrote square root and the numbers infront of the square root are supposed …
7. ### Math ~CHECK MY ANSWER~

1) Which of these is a rational number? a. Pi b. Square root 3 ****** c. Square root 2 d. 1.3 (the # 3 has a line at the top) 2) Which of the following sets contains 3 irrational numbers?
8. ### Math ~CHECK MY ANSWERS~

1) Which of these is a rational number? a. Pi b. square root 3 ****** c. square root 2 d. 1.3 (the # 3 has a line at the top) 2) Which of the following sets contains 3 irrational numbers?
9. ### Algebra I

Son brought home a hand made worksheet that teacher did not go over and can't find examples anywhere. Multiply each expression by its conjugate. A. Square root of (13)-2 B. 2+3Square root (5) C. Square root(3) minus Square root(7) …
10. ### math

1) Which of these is a rational number? a. Pi b. Square root 3 ****** c. Square root 2 d. 1.3 (the # 3 has a line at the top) 2) Which of the following sets contains 3 irrational numbers?

More Similar Questions