Q.1. Factorise the expression 5 x2 y – 15 xy2.
Q.2. Factorise the expression 10 a2 – 15 b2 + 20 c2.
Q.3. Factorise the expression – 4 a2 + 4 ab – 4 ca.
Q.4. Factorise the expression x2 y z + x y2 z + x y z2.
Q.5. Factorise the expression a x2 y + b x y2 + c x y z.
Q.6. Factorise the expression x2 + x y + 8x + 8y.
Q.7. Factorise the expression 15 xy – 6x + 5y – 2.
Q.8. Factorise the expression ax + bx – ay – by.
Q.9. Factorise the expression 15 pq + 15 + 9q + 25p.
Q.10. Factorise the expression z – 7 + 7 x y – x y z.
Q.11. Factorise x2 + 8x + 16
Q.12. Factorise 4y2 – 12y + 9
Q.13. Factorise 49p2 – 36
Q.14. Factorise a2 – 2ab + b2 – c2.
Q.15. Factorise m4 – 256.
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