Answer:
(a)

(b)

(c)

(d)

(e)

Explanation:
Solving (a):
Given

Required
Express as a product
Express 10x as 5 * 2x

Apply distributive property


So:

Solving (b):
Given

Required
Express as a product
Express 2x and 3x as 2 * x and 3 * x, respectively

Apply distributive property



So:

Solving (c):
Given

Required
Express as a sum/difference
Apply distributive property



Solving (d):
Given

Required
Express as a sum/difference
Apply distributive property


Solving (e):
Given

Required
Express as a product
Factorize

Apply distributive property

So:
