522 a 5 6 12 b 4 42 189 Answer a 30 2 b 4 62523 a 3 23 2 7 18 x x b 3 3 2 3

522 a 5 6 12 b 4 42 189 answer a 30 2 b 4 62523 a 3

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522. (a) 5 6 12 (b) 4 4 2 18 9 Answer: (a) 30 2 ) (b) 4 6 2 523. (a) 3 2 3 2 7 18 x x (b) 3 3 2 3 6 20 2 16 a a Use Polynomial Multiplication to Multiply Radical Expressions In the following exercises, multiply. 524. (a) 11 8 4 11 (b) 3 3 3 3 9 18 Answer: (a) 44 8 11 (b) 3 3 3 2
OpenStax 8.8 Use the Complex Number System This file is copyright 2017, Rice University. All Rights Reserved. 525. (a) 3 2 7 5 4 7 (b) 3 3 5 3 x x 526. 2 7 5 11 4 7 9 11 Answer: 439 2 77 527. (a) 2 4 11 (b) 2 3 2 5 528. 7 10 7 10 Answer: 39 529. 3 3 3 2 3 2 x x 8.5 Divide Radical Expressions Divide Square Roots In the following exercises, simplify. 530. (a) 48 75 (b) 3 3 81 24 Answer: (a) 4 5 (b) 3 2 531. (a) 5 7 3 320 45 mn m n (b) 3 4 2 3 2 4 16 54 x y x y Rationalize a One Term Denominator In the following exercises, rationalize the denominator. 532. (a) 8 3 (b) 7 40 (c) 8 2 y Answer: (a) 8 3 3 (b) 70 20 (c) 4 2 y y 533. (a) 3 1 11 (b) 3 7 54 (c) 3 2 3 3 x