Adding and subtracting radicals :
1) 3√6 - 4√6 Solution
2) -3√7 + 4√7 Solution
3) -11√21 - 11√21 Solution
4) -9√15 + 10√15 Solution
5) -10√7 + 12√7 Solution
6) -3√17 - 4√17 Solution
7) -10√11 - 11√11 Solution
8) -2√3 + 3√27 Solution
9) 2√6 - 2√24 Solution
10) 2√6 + 3√54 Solution
11) -√12 + 3√3 Solution
12) 3√3 - √27 Solution
13) 3√8 + 3√2 Solution
14) -3√6 + 3√6 Solution
Practice on adding and subtracting radicals.
1) 5√6 + 3√6
2) 4√20 - 2√5
3) 3√(32x2) + 5x√8
4) 7√4x2 + 2√25x - √16x
5) 5∛x2y + ∛27x5y4
6) 3√9y3 - 3y√16y + √25y3
Multiply the following radicals.
1) √6 × 4√6
2) -√5 × √20
3) -√2 × √3
4) 4√8 × √2
5) √12×√15
6) √5 × (-2√5)
7) -3√5 ×√20
8) √15 × 3√5
9) √9 ×√3
10) -4√8 ×√10
1) 93 x 272 = 3n, n = ? Solution
2) 4-a = 64, a = ? Solution
3) x-3 = 1/8, x = ? Solution
4) 5√8+7√32 =
(a) 18√2 (b) 38√2 (c) 23√4 (d) 33√3 (e) 38√3
5) 4√18 x 11√12 =
(a) 12√6 (b) 34√6 (c) 264√6 (d) 264√3 (e) 264√2
6) y-5 = 1024, y = ? Solution
7) 2-n = 1/256, n = ? Solution
8) √x = 4a2bc3, x = ? Solution
9) 812 = 2x, x = ? Solution
10) c2/5 = 4, c = ? Solution
11) 94x / 273x = ?
(a) 9x (b) 1/3x (c) 1/9x (d) 3x (e) 1/4x
12) Which of the following is equal to 58x?
I. (54x)4
II. (54x)2
III. (54x)(54x)
(a) I (b) II (c) III (d) I and II (e) II and III
13) n3 ≥ n2 for which of the following?
I. n = 1
II. n = 0
III. n = −1
A. I B. II C. III D. I and II E. II and III
14) Simplify (a2b-6c11d-4) / (a-5b-2c7d9) Solution
15) 274/x = 81, x = ? Solution
16) 3√x-7 = 5, x = ? Solution
17) 9√x - 7√x - 36 = -16, x = ?
(a) 5 (b) 10 (c) 20 (d) 50 (e) 100
18) x = 2, y = x2, (y2-x3)(x2/3y) =
Simplify each expression by factoring to find perfect squares and then taking their root.
1) √75 2) √16 3) √36 4) √64 5) √80 6) √30 7) √8 |
8) √18 9) √32 10) √12 11) √108 12) √125 13) √50 14) √175 |
May 21, 24 08:51 PM
May 21, 24 08:51 AM
May 20, 24 10:45 PM