Page 10 - PRAKTIS HEBAT MATHS TG 2

Matematik Tingkatan 2 Jawapan

5. (i) x(8y + x) (ii) 3x +3y
Prakt is PT 3 Pemfaktoran dan Pecahan Algebra (iii) 2y – 3x (iv) (x − y)(x + y)
2
xy
Factorisation and Algebraic Fractions
C
A 1. (a) (i) 3m – m n
2
2
1. C 2. C 3. D 4. D 5. C (ii) (a) (p + 8)(p – 8)
6. C 7. A 8. C 9. B 10. B (b) 8(2 – 3x) 2
B (b) (i) q – 1 (ii) 3a + a
3b
4p
(c) (i) (5x + 1) cm (ii) 64 cm 2
1.
2
4 q 2. (a) (i) 21qt (ii) 21qt (q + 2t – 2)
2
(b) (i) Segi empat sama A / Square A :
/
3 1 2q Luas Area = (36p + 12p + 1) cm 2
2
Perimeter = (24p + 4) cm
Segi empat sama B / Square B :
2 Luas Area = (25p – 70p + 49) cm 2
/
2
6 6p pq
4pq Perimeter = (20p – 28) cm
(ii) Segi empat sama A / Square A = 1 849 cm 2
p Segi empat sama B / Square B = 784 cm 2
3p 4q
2
2
3. (a) (i) 3p (ii) 3a + 4b – 4ab
6p 2p q
4p (iii) (3x – 1)(5x + 2)
4pq 2pq (b) (18p + 14) cm
2 – z
4. (a)
2. 3yz(y + 3)
a 2 (b) (i) –15r + 25t (ii) – jm – 8j
• 4 3
a
  • (c) (i) 6r + 2 (ii) 4 hari / days
2
4
• – a 2
a
a
    • 9 KBAT
–
×
2
3
• – a 6 2
a
    • 2 5k + 3
a
–
× –
2
2
a
• 16
a
  2 • a 2
3
3
• Prakt is PT 3 Rumus Algebra
9 Algebraic Formulae
3. (a) 5mn ÷ 10n 2 A
2
m + 5 m – 25
2
= 5mn × m – 25 1. A 2. D 3. C 4. C 5. A
m + 5 10n 2 6. B 7. B 8. A 9. A 10. D
11. D
= 5mn × (m + 5)(m – 5)
m + 5 10n 2 B
2
= m – 5m 1. (a)
2n q = p – 3
2
(b) 6p – 12 = 6 (p – 2) p = 2q + 3
2
2
4. 2r – 5rs – 3s = (2r + s)( r – 3s ) q = 2(p + 3)
2r s rs
p = q – 3 p – 3
r –3s –6rs 2 q = 2
2r 2 –3s 2 –5rs
(b) (i) 3 (ii) 2
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