For Exercises 87-92, determine the set of values for x for which the radical expression would produce a real number. For example, the expression Vx – 1 is a real number if x – 120 or equivalently, x> 1. 87. a. Vx – 2 b. V2 – x 88. a. Vx – 6 b. V6 — х b. Vr b. V2r – 9 b. Vx + b. V3x – 7 89. a. Vx + 4 x + 4 90. a. Vx + 7 91. a. V2x - 9 92. а. VЗx — 7

For Exercises 87-92, determine the set of values for x for which the radical expression would produce a real number. For example, the expression Vx – 1 is a real number if x – 120 or equivalently, x> 1. 87. a. Vx – 2 b. V2 – x 88. a. Vx – 6 b. V6 — х b. Vr b. V2r – 9 b. Vx + b. V3x – 7 89. a. Vx + 4 x + 4 90. a. Vx + 7 91. a. V2x - 9 92. а. VЗx — 7

Algebra & Trigonometry with Analytic Geometry

13th Edition

ISBN:9781133382119

Author:Swokowski

Publisher:Swokowski

Chapter1: Fundamental Concepts Of Algebra

Section1.1: Real Numbers

Problem 30E

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