Question

Can someone check my answers?

1. Simplify the sum or difference.
sqrt 5 + 6 sqrt 5
A) 6 sqrt 5
B) 30
C) 6 sqrt 10
D) 7 sqrt 5

2. Simplify the sum or difference.
4 sqrt 2 - 7 sqrt 2
A) negative sqrt 6
B) -3 sqrt 2
C) -11 sqrt 2
D) 11 sqrt 2

3. Simplify the sum or difference.
3 sqrt 7 - sqrt 63
A) -2 sqrt 7
B) -6 sqrt 7
C) -4 sqrt 3
D) 0

4. Simplify the sum or difference.
-6 sqrt 10 + 5 sqrt 90
A) 9 sqrt 10
B) -9 sqrt 10
C) -39 sqrt 10
D) -10

5. Simplify the product.
sqrt 6 (sqrt 2 + sqrt 3)
A) sqrt 8 + 3
B) sqrt 30
C) 2 sqrt 3 + 3 sqrt 2
D) 4 sqrt 2 + 3

Answer 1

1. A
2. C
3. D
4. B
5. B

Answer 2

6. Simplify the product.
3 sqrt 7 (1 - sqrt 7)
A) 3 sqrt 7 - 21
B) 3
C) 7
D) 2 sqrt 7

7. Simplify the product.
(sqrt 6 + sqrt 3) (sqrt 2 - 2)
A) 2 sqrt 3 - sqrt 6
B) -3 sqrt 6
C) 0
D) negative sqrt 6

8. Simplify the quotient.
3/sqrt 7 - sqrt 3
A) sqrt 3 / 12 sqrt 7 + 4 sqrt 3
B) 3 sqrt 7 + 3 sqrt 3 / 4
C) 3 sqrt 7 - 3 sqrt 3 / 4
D) 3/4

9. Simplify the expression.
(sqrt 3 + sqrt 5^2)
A) sqrt 6 + sqrt 30 + sqrt 10
B) 8
C) 8 + 2 sqrt 15
D) 16

Answer 3

6. B
7. C
8. A
9. C

Answer 4

treat the radical as a variable
so for the first question its comparable with
x + 6x = 7x

Answer 5

@stuck-help

Answer 6

ill try

Answer 7

i really dont know this :(

Answer 8

id say you got a 80

Answer 9

babe