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Factorise fully 21a - 7a^2

Factorise fully 21a - 7a^2
asked 6.4k views
2 votes
Factorise fully
21a - 7a^2

asked
User Ecognium
by
7.3k points

2 Answers

7 votes

Answer:

7(3a-a^2)

Explanation:

7 divided into 21 is 3

7(3a-a^2)

answered
User Kakkalo
by
8.3k points
2 votes
3a(7-a)
Have a great day!!!
answered
User Sromku
by
8.7k points
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