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Mathematics
Problem
Day 2 - Tuesday, 02 June 2026 Factorise by grouping:
7
a
b
−
21
b
c
−
7
a
x
+
21
c
x
7ab-21bc-7ax+21cx
7
ab
−
21
b
c
−
7
a
x
+
21
c
x
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