Question

Factorise the following expression
2. a^2– ax
5. πR^2- πr^2
8. 20x²y + 30xyz
11. x^2 - xy + xy^2
14. 3x^3y^2 + 9x^2y + 12xy
17. ax^3y^2+ bx²y + cxyz
20. 3x(a - b) - 6y(a - b)​

Answer 1

Step-by-step explanation:

2

common

a(a-x)

5

π(R^2-r^2)