Some square root problems?

Question

1: sqrt (3+3)

2: sqrt 1/2(2)+1/2(2)

3: sqrt 2(x)+7(x)

4: sqrt (7)-2(7)+3(7)

5: sqrt (7)-2(7)+2(11)

6: sqrt (16x)+(9x)

7: sqrt 10(y)-7(y)+(5)

Answer 1

1. √(3+3) = √9 is 3.

2. 1/2(2)+1/2(2) = 1+1 = 2; √2 = 1.4142

3. 2(x)+7(x) = 9x² =  Ã¢ÂˆÂš9x² = 3x.

4. (7)-2(7)+3(7) = 7-14+21=14; √14 = 3.7417

5. (7)-2(7)+2(11) = 7-14+77 = 67; √67 = 8.1854

6. 16x+9x = 25x; √25x = 5√x

7. 10(y)-7(y)+(5) = 10y-7y+5 = √(3y+5)

Answer 2

1. 2 x sqrt 3

2. 2

3. sqrt 9x

4. sqrt 7

5. 5 x sqrt x

6. sqrt 3y +5