Factorise the following expressions. 1) x3 + 8y3
2) 8x3-27y3
3) a3-8b3
4) 8a3+27b3
5) a3-64

Explanation:

Both are cubes so

1.(x + 2y)

2.(2x - 3y)

3. (a - 2b)

4. (2a + 3b)

5. (a - 4)

particle   p is an electron and particle q is a neutron

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