Factorise :
1. a2 + ax + ab + bx
2. a2 - ab - ca + bc
3. ab - 2b + a2 - 2a
4. a3 - a2 + a - 1
5. 2a - 4b - xa + 2bx
6. xy-ay-ax + a2 + bx - ab
7.) 3x5 - 6x4 - 2x3 + 4x2 + x-2
8. –xży - x + 3xy + 3
9. 6a2 - 3a2b-bc2 + 2c2
13.5 FACTORISATION OF
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Answer:
a2 + ax + ab + bx
= (a2 + ax) + (ab + bx)
= a (a + x) + b (a + x)
= (a + x) (a + b)
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