Multiply the given terms for each part:

a) $4 x y$ and $(4 x + 2 y)$
b) $2$ $x^{2}$ $y$ and $4 y$
c) $2$ $x$ $y^{2}$ and $4$
d) $3 x$ and $4 x y$

(4 marks)

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Solution

a) $4 x y \times (4 x + 2 y) = 16 x^{2} y + 8 x y^{2}$
(1 mark)

b) $2 x^{2} y \times 4 y = 8 x^{2} y^{2}$
(1 mark)

c) $2 x y^{2} \times 4 = 8 x y^{2}$
(1 mark)

d) $3 x \times 4 x y = 12 x^{2} y$
(1 mark)

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