Activities 1 1.1) a) x = 2 b) x = 3 c) x = 23 d) x = 5 e) x = 53 f) x = 12 g) x = 0 h) x = 9 i) x = 88 j) x = 0 k) x = 8 l)x = 4 a) x = 2 b) x = 3 c) x = 23 d) x = 5 e) x = 53 f) x = 12 g) x = 0 h) x = 9 i) x = 88 j) x = 0 k) x = 8 l)x = 4 1.2) a) x = 1 b) x = 3 c) x = 16 d) x = 16 e) x = 18 f) x = −2 g) x = 3 h) x = 11 i)x = 2 3 a) x = 1 b) x = 3 c) x = 16 d) x = 16 e) x = 18 f) x = −2 g) x = 3 h) x = 11 i)x = 2 3 Activities 2 2.1) a) x = 1 b) x = 2 c) x = −9 d) x = 2 e) x = 11 5 f) x = 0 g) x = −3 h) x = −1 i)x = 1 a) x = 1 b) x = 2 c) x = −9 d) x = 2 e) x = 11 5 f) x = 0 g) x = −3 h) x = −1 i)x = 1 2.2) a) x = 1 b) x = 5 6 c) x = 10 8 = 5 4 d) x = −4 e) x = −2 f) x = 9 a) x = 1 b) x = 5 6 c) x = 10 8 = 5 4 d) x = −4 e) x = −2 f)x = 9 Activities 3 3.1) a) x = 6 b) x = 4 c) x = 40 d) x = 12 e) x = 14 f) x = 9 g) x = 20 h) x = 12 i)x = 0 a) x = 6 b) x = 4 c) x = 40 d) x = 12 e) x = 14 f) x = 9 g) x = 20 h) x = 12 i)x = 0 3.2) a) x = 27 b) x = 30 c) x = 4 d) x = −4 e) x = 8 f)x = 0 a) x = 27 b) x = 30 c) x = 4 d) x = −4 e) x = 8 f)x = 0 Activities 4 4.1) a) x = −7 3 b) x = −18 7 c) x = 0 d) x = 7 12 e) x = 10 f) x = −11 g) x = −31 5 h) x = 13 2 i) x = 3 j)x = 8 11 a) x = −7 3 b) x = −18 7 c) x = 0 d) x = 7 12 e) x = 10 f) x = −11 g) x = −31 5 h) x = 13 2 i) x = 3 j)x = 8 11 4.2) a) x = 5 b) x = 3 13 c) x = −1 5 d) x = 1 e) x = −4 f)x = 52 a) x = 5 b) x = 3 13 c) x = −1 5 d) x = 1 e) x = −4 f)x = 52 Activities 5 5.1) a) x = −5 7 b) x = −79 c) x = 665 17 d) x = 87 16 e) x = 400 29 f)x = 164 83 a) x = −5 7 b) x = −79 c) x = 665 17 d) x = 87 16 e) x = 400 29 f)x = 164 83 5.2) a) x = 2 b) x = 4 c) x = 2 d) x = − 1 10 e) x = 6 f) x = 4 g) x = −27 5 h)x = −9 a) x = 2 b) x = 4 c) x = 2 d) x = − 1 10 e) x = 6 f) x = 4 g) x = −27 5 h)x = −9 Activities 6 6.1) a) x = 1 2 b) x = 1 5 c) x = 1 8 d) x = −3 2 e) x = 1 3 f)x = 1 2 a) x = 1 2 b) x = 1 5 c) x = 1 8 d) x = −3 2 e) x = 1 3 f)x = 1 2 6.2) a) x = 2 b) x = 1 2 c) x = 3 d) x = 1 6 e) x = 1 7 f)x = 1 5 a) x = 2 b) x = 1 2 c) x = 3 d) x = 1 6 e) x = 1 7 f)x = 1 5 Activities 7 7.1) a) x = 16 b) x = −2 c) x = −4.4 d) x = 6.4 e) x = 3 f) x = −5 g) x = −4 3 h) x = 5 2 i) x = −8 j) x = 9 4 k) x = 1 l) x = −3 m) x = −1 n) x = 29 32 o)x = 1 3 a) x = 16 b) x = −2 c) x = −4.4 d) x = 6.4 e) x = 3 f) x = −5 g) x = −4 3 h) x = 5 2 i) x = −8 j) x = 9 4 k) x = 1 l) x = −3 m) x = −1 n) x = 29 32 o)x = 1 3 7.2) a) x = −14 b) x = 1 c) x = 1 d) x = 10 3 e) x = 2 f) x = 63 16 g) x = 5 2 h) x = 24 i)x = 0 a) x = −14 b) x = 1 c) x = 1 d) x = 10 3 e) x = 2 f) x = 63 16 g) x = 5 2 h) x = 24 i)x = 0 7.3) a) x = 10 3 b) x = 3 2 c) x = 3 d) x = 1 3 e) x = 26 19 f) x = 1 3 g) x = 1 7 h)x = 3 a) x = 10 3 b) x = 3 2 c) x = 3 d) x = 1 3 e) x = 26 19 f) x = 1 3 g) x = 1 7 h)x = 3 7.4) a) x = −9 2 b) x = 84 187 c) x = 8 11 d) x = − 1 12 e) x = 24 f) x = 20 7 g) x = −30 h)x = 65 2 a) x = −9 2 b) x = 84 187 c) x = 8 11 d) x = − 1 12 e) x = 24 f) x = 20 7 g) x = −30 h)x = 65 2 7.5) a) x = −9 2 b) x = 84 187 c) x = 8 11 d) x = − 1 12 e) x = 24 f) x = 20 7 g) x = −30 h)x = 65 2 a) x = −9 2 b) x = 84 187 c) x = 8 11 d) x = − 1 12 e) x = 24 f) x = 20 7 g) x = −30 h)x = 65 2 7.6) a) x = 35 2 b) x = 13 c) x = 26 3 d) x = 11 3 e) x = 14 9 f)x = −11 39 a) x = 35 2 b) x = 13 c) x = 26 3 d) x = 11 3 e) x = 14 9 f)x = −11 39 Activities 8 8.1) a) x = ±7 b) x = ±3 c) x = ±2 d) x = ±5 e) x = ±2.5 f)no solution a) x = ±7 b) x = ±3 c) x = ±2 d) x = ±5 e) x = ±2.5 f)no solution 8.2) a) no solution b) x = ±3 c) x = ±5 d) x = ±5 e) x = ±8 f) x = ±9 g) x = ±4 h) x = ±2 i)x = ±3 a) no solution b) x = ±3 c) x = ±5 d) x = ±5 e) x = ±8 f) x = ±9 g) x = ±4 h) x = ±2 i)x = ±3 Activities 9 9.1) a) (5, 4) b) (4, 1) c) (2, 3) d)(0, 4) a) (5, 4) b) (4, 1) c) (2, 3) d)(0, 4) 9.2) a) (5, 4) b) (6,−2) c) (10, 6) d)(3, 9) a) (5, 4) b) (6,−2) c) (10, 6) d)(3, 9) 9.3) a) (8, 5) b) (3, 2) c) (5, 4) d)(1, 5) a) (8, 5) b) (3, 2) c) (5, 4) d)(1, 5)