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Simplify:

$7sqrt2+3sqrt2$
1. $20$
2. $10sqrt2$
3. $21sqrt2$
4. $84$
Solve:

$3sqrtx=6$
1. $x=3$
2. $x=4$
3. $x=9$
4. $x=18$
Evaluate: $2 root3(8) + 9$
1. $2 root3(8) + 9$
2. $11$
3. $13$
4. $11 root3(8)$
What is $root3( 27/125)$ in simplest form?
1. $(3 root3 5)/5$
2. $(3)/(root3 5)$
3. $(root3 5)/5$
4. $(3)/5$
Simplify the radical expression $sqrt(16/100)$.
1. $4/10$
2. $2/5$
3. $5/2$
4. $10/4$
Simplify the radical expression $sqrt(48)$.
1. $8sqrt(3)$
2. $4sqrt(3)$
3. $16sqrt(3)$
4. $2sqrt(3)$
To simplify $sqrt(9+16+144)$, we first
1. find the square root of each of the numbers.
2. do the opposite.
3. add the numbers under the radical.
4. decide the index of the problem.
What is $root3 20 * root3 6$ in simplest form?
1. $root 3 120$
2. $2(root 2 15)$
3. $8(root 3 15)$
4. $2(root 3 15)$
Simplify.

$root6(d^24x^36)$
1. $d^6x^4$
2. $d^30x^12$
3. $d^(1/4)x^(1/6)$
4. $d^4x^6$
Simplify the radical expression $sqrt(28)$.
1. $7sqrt(2)$
2. $4sqrt(7)$
3. $2sqrt(7)$
4. $4sqrt(2)$
Simplify radical expression $sqrt(72)$.
1. $3sqrt(2)$
2. $4sqrt(18)$
3. $2sqrt(6)$
4. $6sqrt(2)$
Simplify the radical expression $sqrt(27)$.
1. $3sqrt(9)$
2. $6sqrt(3)$
3. $9sqrt(3)$
4. $3sqrt(3)$
Rationalize the denominator for $16/sqrt8$.
1. 4
2. $4sqrt2$
3. $12sqrt2$
4. $sqrt2$
Solve for all possible values of $x$: $(sqrt(x+3))/9=sqrt(x+1)$
1. $3, 9$
2. $-39/40$
3. $78/80$
4. $3$
Simplify the radical expression $-sqrt (256)$.
1. $-128$
2. $16$
3. $-16$
Simplify the radical expression $sqrt(98)$.
1. $7sqrt(2)$
2. $14$
3. $7sqrt(8)$
4. $8$