Let’s factorise:
a) $(a – b)^2 – 9$
b) $(x + y)^2 – 25$
c) $(a^2 + b^2)^2 – 4$
d) $(a^2 – b^2)^2 – a^2b^2$
e) $16 – (x + y)^2$
f) $49 – (a – b)^2$
g) $(x + 3)^2 – (y + 2)^2$
h) $(a – 5)^2 – (b – 4)^2$
1 Marks
Let’s factorise:
a) $(a – b)^2 – 9$
b) $(x + y)^2 – 25$
c) $(a^2 + b^2)^2 – 4$
d) $(a^2 – b^2)^2 – a^2b^2$
e) $16 – (x + y)^2$
f) $49 – (a – b)^2$
g) $(x + 3)^2 – (y + 2)^2$
h) $(a – 5)^2 – (b – 4)^2$
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