Leabhar Iomlán - Cogg

3. (8 2 √ __6 ) km5.9 5 √ ___________ 366. (i) 2 __√ a(ii) ___ 2√ a ; 27. (i) x 4 (ii) x 5(iii) x 9 (iv) x 2, 3(v) x 2 (vi) x 2, 88. (i) x 4 (ii) x 2_9 , 2(iii) x 9 (iv) x 2, 69. a 1__a 110. a 2, b 511. (i) √ _______2x 2 8(ii) √ _______3x 2 8 ; x 4 mCleachtadh 2.95. Fíor7. Fíor8. k 89. p 1110. (x 1)(x 2)11. (x 2)(x 3)12. (i) (x 1)(x 4)(x 1)(ii) (x 1)(x 3)(x 4)(iii) (x 2)(x 3)(x 5)(iv) (x 1)(x 1)(3x 4)(v) (x 1)(x 3)(2x 1)(vi) (x 2) 2 (2x 5)13. (x 2)(x 5)(2x 1)14. a 2; (x 1)(x 1)15. (x 2)(x 3)(x 4); x 2, 3, 416. 4, 217. (i) 1, 1, 4 (ii) 1, 4, 3(iii) 1, 1, 4_318. a 7, b 2; (2x 1); 1, 3, 1_219. k 8; (x 2)(x 6)20. a 3, b 30; (2x 5)21. a 5, b 19; 1, 3, 2_522. (i) _____( b c1_a)(iv) 1, 2, 33(ii) ( c __a) 1_3 bCleachtadh 2.101. (i) f(x) x 3 3x 2 x 3(ii) f(x) x 3 x 2 10x 82. (i) f(x) x 3 x 2 6xg(x) 3x 3 3x 2 18x(ii) f(x) x 3 6x 2 11x 6g(x) 2x 3 12x 2 22x 123. a 6, b 3, c 15, d 64. a 0, b 7, c 65. (i) f(x) x 3 2(ii) g(x) x 3(iii) h(x) 2x 3A ( 2 1_3, 4)6. f(2) 16, f(5) 57. f(0) 6f(1_2 ) 3 3_8f(2) 48. (i) f(x) 1(x 1)(x 1)(x 2) 2(ii) a 1, b 4, c 3, d 4, e 49. (i) a 2(ii) f(x) (x 2) 2 (x 1) 2g(x) 1_2 (x 2)2 (x 1) 210. (i) x 3 6x 2 3x 10 0(ii) x 3 4x 2 3x 0(iii) 4x 3 5x 2 23x 6 0(iv) 2x 3 13x 2 22x 8 011. (i) f(x) 2x 3 17x 2 27x 18(ii) f(x) 4x 3 8x 2 37x 2012. a 1_3 , b 1813. (i) 1, 0, 2(ii) 11_4 , 0, 2 1_4(iii) 1.3, 0, 2.314. (i) V x(x 1)(x 1)(ii) x 3 cm15. V __ 4 h3 ah 3a 0.79V 1051.49 cm 3d 6.5 cm16. x 4.8 (ón ngraf); x 4.84 (ailgéabar);x 3.6Súil Siar (Croícheisteanna)1. x 1, 5; t 2, 1, 3, 62. x 1 √ ___133. p 15. a 21, b 86. (i) Ceann amháin de 2, 3, 5(ii) (x 2)(x 3)(x 5)(iii) Is iad 2, 3, 5 na fréamhacha7. (i) Fréamhacha réadacha(ii) Fréamhacha samhailteacha(iii) Fréamhacha samhailteacha8. y 2 12y 27 0; x 1, 2Súil Siar (Ardcheisteanna)1. 2(x 1) 2 7(i) 1 √ __7_2(ii) (1, 7)2. 11 4 √ __63.√ ___________ 35 5254. 75. (i) Luach beagán níos nó ná 1 atá ar t(ii) t 0.90 (iii) 0.486%6. p 1_1 4n 2 222 __________√_________284