(1) Factorise the following expressions:
(i) 2a2 + 4a2 b + 8a2 c
(ii) ab - ac - mb + mc Solution
(2) Factorise the following:
(i) x2 + 4x + 4
(ii) 3a2 - 24ab + 48b2
(iii) x5 - 16x
(iv) m2 + 1/m2 - 23
(v) 6 - 216 x2
(vi) a2 + 1/a2 - 18 Solution
(3) Factorise the following:
(i) 4x2 + 9y2 + 25z2 + 12xy + 30yz + 20xz
(ii) 25x2 + 4y2 + 9z2 - 20xy + 12yz - 30zx Solution
(4) Factorise the following
(i) 8x3 + 125y3
(ii) 27x3 - 8y3
(iii) a6 - 64 Solution
(5) Factorise the following:
(i) x3 + 8y3 + 6 xy - 1
(ii) l3 - 8m3 - 27n3 - 18 lmn Solution
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