RE-S6-CT-0002-ALG02

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S6 Revision exercise
Algebra - Factorization
Factorize completely the following expressions:
1.
5 km−10 kn
2.
2 xy +6 x
3.
(4 p−2 q)−5 r (q−2 p)
4.
6 ax +3 ay +2 bx+ by
5.
3 ac−9 c−4 ab +12 b
6.
8 x 2 y 2−18 x 2 y
7.
2 x 2−50
8.
4 y −36
9.
2 x −12 x +18
2
2
10. 3 y 2+30 y +75
11. y 2−7 y +10
12. x 2−12 x− 45
13. 4 x 3− 8 x 2 − x +2
14. a2− 4 ab+4 b2 −16
15. 18 x2− 8
16. 2 x 2−7 x− 22
17. m2+ mn−6 n2
18. x 2−36 y 2
19. x 4−16
20. a2 +2 ab+ b2−c 2
21. x 4 −x 2 +x−1
22. ab 2 −4 a− ab2 c 2 + 4 ac2
23. 3 x2 +10 xy +8 y 2
24. x 2−4 xy +3 y 2
25. 4 m2 −9−2 m 2 n−7 mn+15 n
26. m2+ m−6+mn 2−2 n2
27. x 2−4 xy +3 y 2 +11 x−33 y
28. x 3−x 2 y−7 x 2−x − y+ 7
29. m 2+ mn−6 n2−5 m+10 n
30. 9 r 3−18 r 2 s−rs 2 +2 s 3
CT0002
Page 1
S6 Revision exercise
Algebra - Factorization
Answers
1.
5 k (m−n)
2.
2 x ( y +3)
3.
(2 p−q)(2+5 r )
4.
(3 a+b)(2 x + y)
5.
(a−3)(3 c−4 b)
6.
2 x 2 y (4 y−9)
7.
2(x +5)( x−5)
8.
4 ( y +3)( y−3)
9.
2(x−3)2
10. 3( y +5)2
11. ( y−5)( y −2)
12. ( x−3)(x +15)
13. (2 x +1)(2 x−1)(x−2)
14. (a−2 b+4 )(a−2b−4)
15. 2(3 x+ 2)(3 x−2)
16. (2 x −11)( x+2)
17. (m+3 n)(m−2 n)
18. ( x+ 6 y)( x−6 y)
19. ( x 2+ 4)( x +2)(x−2)
20. (a+ b+c )(a+b−c )
21. ( x−1)(x3 + x 2 +1)
22. a(b+2)(b−2)(1+ c)(1−c)
23. (3 x+ 4 y )(x+ 2 y )
24. ( x− y )( x−3 y)
25. (2 m−3)(2 m−mn−5 n+3)
26. (m−2)(m+3+n2 )
27. ( x− y +11)( x−3 y )
28. ( x+ 1)( x−1)(x + y−7)
29. (m−2 n)(m+3 n−5)
30. (r−2 s)(3 r + s)(3 r−s)
CT0002
Page 2
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