(i) (5) (+2)
po
these as identites?
10. Factorise (1) 27d +6
11. Factorise 27x + y +
12. Verify that x + y)
(iv)
(v) (1 + x) (1 + x)
2. Evaluate the following products without actual multiplication,
0 101 00
(m) so +40 7
(in) 999 999
(iv) 501 501
(v) 30.5 x 29.5
3. Factorise the following using appropriate identities,
( 16 + 24xy + 9
y?
(ii) 4y2 - 4y + 1
13. If x+y+z=0, s
14. Without actual calcu
(1) (-10) + (7)
(iv) 1802 - 50
25
(v) + 5x + 6
(vi) 3p2 -- 24p + 36
4. Expand each of the following, using suitable identities
) (+2y + 42) (1) (2a - 36) (ii) (-2a + 5b - 3c)?
15. Give possible exp
by (1) 40+
16. What are the po-
volumes are giv
@ 3x3 - 11
17. If 2(a+62) =
5
4 2
(V) (p+1)
(vi)
(+)
5. Factorise
0 25x2 + 16y + 4z? -40xy + 16yz - 20xz
6) 9d +46 +160 + 12ab - 16bc - 24ca
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