Fsc Part 1 Mathematics (Complete Solution)

Q6
simplify by justifying each step

(i)
4 + 16x
4
SOLUTION:
= (4 + 16x) X
1
4
= (4 x 1 + 4 x 4x) x
1
4
= (4 x 1 + 4 x 4x) x
1
4
       (Multiplicative identity)
=
1
4
x 4 (1 + 4x)        (Distributive Property)
= 1 x (1 + 4x)                        (Multiplicative inverse)

= 1 + 4x (Multiplicative identity)

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