Simplify:

(i)

(ii)

(iii)

(iv)

(v)

(vi)

(vii)

(viii)

Multiply:

(i)

(ii)

(iii)

(iv)

(v)

(vi)

Simplify each of the following and express the result as a rational number in standard from:

(i)

(ii)

(iii)

(iv)

(v)

(vi)

(vii)

(viii)

Simplify:

(i) ( * ) + ( * ) – ( * )

(ii)

(iii)

(iv)

Verify the property: by taking:

(i)

(ii)

(iii)

(iv)