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8

(13) 6, or - 5 (14) X, or -
(16) 6, or - 7. (17) 5, or - 25
(19) 25, or — 30. (20) a, or b.
(22) 1o, or 2. (23) 11, or — 13.
(25) 2, or — 12. (26) 6, or 31
(28) 2, or js. (29) 6, or
(31) 3, or

(32) + 10. (34) 5, or

(35) 2, or 16 (37) to, or — 7s. (38) 1. (40)

bac - ab bc + b2.

(15) ja, or — 2a.
(18) 4, or — 3.
(21) 16, or 6.
(24) 1}, or
(27) – a, or — b.
(30) = 6.
(33) 10, or — 72
(36) 13, or
(39) = 15.
(41) 8, or

40

10.

Exercise 8 (p. 476). (1) – 7, or 3. (2) 9, or

(3) 10, 5. (4) 7, 12. (5) 4, 9.

(6) 25, 5. (7) 53, 47. (8) 24.

(9) 13, 7. (10) 4. (11) 10.

(12) 225, 1296. (13) 60, 40. (14) 17, 11.

(15) 7 ft. (16) 25, 30.

(17) 21 hrs. (18) 11. (19) £70.

(20) 4 miles per hour. (21) 16. (22) 358 yards. (23) 5, 25.

(24) 125 yds, 75 yds. (25) 131'23 yds.; 48.77 yds. nearly.

(26) 14, 17.
Exercise 9 (p. 480).
12x + 20 = 0.

(2) ro.

5.7 — 24
cox + 25 = 0. (4) 2-9=0.

(6) 3 + x — 12 = 0.
(a + b) x + ab = 0. (8) 322 — 7% +2=0.

10x + 3=0. (10) 4x2 - 4% - 15 = 0. (11) 8x2 + x-7=0. (12) x2 + 13x + 40 = 0.

= 0.

(1) 22 (3) x2 (5) za (7) x (9) 8.72

lor - II = 0.

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نون (9)

:: 1.

IX

8 + 176 (10) 2, or — 1. (11) 2a.

(12)

3 Exercise 11 (p. 483). 2a - 6 (1)

(2) G. C. M. = x+1; aa I

L. C. M. = 73 + 2x2 – X – 2. 8ry (r + y2) (3) (4)

(6) 232 + y2 — 322. (7* - y")

x*.

37 (8) .hr.

9) (11) x? — 7x + 12; (x — 4) (x – 3). (12) a + x. (13) 76 — xy + xy2 – x2y3 + xyt — Jó..

203 + 2ax? + 20x + as (14)

(15) 3; 7, or - 1 23. zaro + 2ä2 x - a (16) a? 52 + 2bc ; 80 ; 0. (17) 34. (18) 72.

(19) 13; 7. (20) 25. 6d., 5d. ; 35. 6d., 4£d.

(21)

t? + y2 (22) 2a + 62 – 302. (23) 6, 7. (24) 4, or — 1. (25) 422

(26) 7, 11. (27) 8, or -6%. (28) 215. 6d. ; 11s. 6d.

2x

I.

Butler & Tanner, The Selwood Printing Works, Frome, and London.

MOFFATT'S EXPLANATORY READERS.

MOFFATT'S EXPLANATORY READER. Primer I. Illustrated. Price 2 d. MOFFATTS EXPLANATORY READER. Primer II. Illustrated. Price 4d. MOFFATT'S EXPLANATORY READER. Standard I. Illustrated. Price 6d. MOPFATTS EXPLANATORY READER. Standard II. Illustrated. Price 8d. MOFFATT'S EXPLANATORY READER. Standard III. Illustrated. Price is. MOFFATT'S EXPLANATORY READER. Standard IV. Illustrated. Price is. 6d. MOFFATTS EXPLANATORY READER. Standard V. Illustrated. Price 25. MOFFATT'S EXPLANATORY READER. Standard VI. Illustrated. Preparing.

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