Leabhar Iomlán - Cogg

7. 4 k 18. 1 p 3; p 29. (i) 2 x 1 (ii) x 3(iii) 10 x 310. (i) 14 x 5 (ii) 1_2 x __ 310(iii)1_ 5 1111. (i) 11_2 x 3 (ii) 1 x 3(iii) 1 x 112. (i) 3 x 10 (ii) 9 x 5(iii) 1 x 21_213. 3 x 214. Gan aon fhréamh réadach15. (i) 11_ t 52(ii) 2 t 4.5(iii) 11_ t 2 agus 4.5 t 5216. (i) 3 x 1_2 (ii) 1 x 3(iii) 11_ x 0.52(iv) 1 x 517. (i) Fad 3.75 (ii) leithead 0.7518. 2 p 319. (i) x 10(ii) x 1(iii) 1 x 1020. x 2 m nó 3 mCleachtadh 7.31. (i) (4, 2) (ii) (2, 6) (iii) (2, 3)(iv) (1_ , 1)2(v) (2, 4) (vi) 22. 1, 21_33. f(x) |x|, g(x) |x 4|, h(x) |x 3|,f(2) 2, g(2) 2, h(5) 24. f(x) |x 1|, g(x) |2x 2|, h(x) |3x 3|5. 46. (i) 4 x 8 (ii) 6 x 2(iii) 2 x 3 (iv) 5 x 67.(v) 3 x 1_3 (vi) 1 x 7(i) 3 x 4 (ii) 11_2 x 1(iii) 1_3 x 58. 22_3 x 89. 24 x 010. 1 x 111. x 1, 0; 1 x 012. (i) 4 x 2 (ii) 4 x 2(iii) 11_4 x 3 1_2 (iv) 2 x 3(v) 11_4 x 2 (vi) 2 x 3(vii) 3 x 31_213. (i)2_ 5 2 (ii) x 1, 1 2_3(iii) 2 x 0Cleachtadh 7.51. Cruthúnas 2. Cruthúnas 3. Cruthúnas4. Cruthúnas 5. Cruthúnas 6. Cruthúnas7. Cruthúnas 8. Cruthúnas9. (a b)(a 2 ab b 2 ); cruthúnas10. Cruthúnas 11. Cruthúnas 12. Cruthúnas13. Cruthúnas 14. Cruthúnas 15. Cruthúnas16. (i) (a b)(a b)(a 2 b 2 )(ii) (a b) 2 (a b)(a 2 b 2 )17. Cruthúnas 18. Cruthúnas 19. Cruthúnas20. Iolraigh an dá thaobh faoi d(b d);ansin roinn an dá thaobh ar bd21. CruthúnasCleachtadh 7.61. (i) a 5 (ii) x 4 (iii) 6x 6 (iv) x 3(v) x 1 (vi) 1 (vii) 3 (viii) a 6(ix) x 3 (x) 9a 2 b 22. (i) 4 (ii)1_9 (iii) 8(iv)9_4 (v) 23. (i) 4 (ii) 8 (iii) 9(iv) 27 (v) 254. (i)9_4 (ii) 3_2 (iii) ___ 1252725(iv) __9 (v) 3_25. 4 26.__ 11127. (i)8. (i)__ y 3x 2 (ii) ___ p 12q 8 (iii) 1_9(iv) y 2_3(v)x 1 _____x9. _____ xx 110. k 1_211. 262 Hz912. __1613. k 2414. k 28____ 1(vi) x 1_a a_42b 2(ii) x 2 x(iii) 1 xCleachtadh 7.71. (i) 5 (ii)3_2 (iii) 3_2(iv) 32. (i) 3_2 (ii) 5_2 (iii) 3 (iv) 3_23. (i) 1_2 (ii) 5_4 (iii) 1_6 (iv) 1_34. 2 5_2; 1585. x 2_3 , y __ 1636. 4.2 x ; 2.2 x ; c 5_27. x 1, 28. x 29. (i) x 0, 3 (ii) x 0, 210. (i) y 2 (ii) 2y 2(iii) 8y; x 1, 211. x 1, 0 12. x 1_2 , 0296