1. which of the following is equal to square root (8x^9y^4

A. 3x^2y^2

B. 3x^4y^2 square root (2x

C. 9x^3y^2

D. 3x^3y^2 square root (2

2. what is the simplest form of the expression square root (2) - square root (10) / square root (2) + square root (10)

A. - 3/2+1/4 square root (10)

B. - 3/2+1/2 square root (5)

C. 1-1/3 square root (5)

D. 1+1/2 square root (5)

3. what is the simplest form of the number 27^2/3

A. 3

B. 6

C. 9

D. 18

[square root (8x^9y^4) ]² = 8x^9y^4

[3x^4y^2 square root (2x) ]²=9x^8y^4.2x=18 x^9y^4

the answer is

square root (18x^9y^4=

B. 3x^4y^2 square root (2x)

square root (2) - square root (10) / square root (2) + square root (10)

(√2-√10) / √2+√10 = (√2-√10) (√2-√10) / (√2+√10) (√2-√10) = (√2-√10) ²/2-10

2+10-2√5/-8 = (√5-6) / 4, it is the same of

A. - 3/2+1/4 square root (10)

27^2/3 = ∛27²=∛3^3) ^2=∛3^3x2 = ∛3^2) ^3=3^2=9

the answer is

C. 9