# Chapter R - Section R.2 - Real Numbers and Their Properties - R.2 Exercises - Page 17: 46

1/2

#### Work Step by Step

1. Substitute values of p, q, and r into numerator of equation. -(8 - 6)^{2} - 2(-4) First solve parentheses, then exponents, then multiply, then subtract. -(2)^{2} - 2(-4) = -4 - 2(-4) = -4 + 8 = 4 2. Substitute values of p, q, and r into denominator of equation and solve. 4 - (-4) = 8 3. Divide numerator by denominator. 4/8 = 1/2

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