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Factorise a squared - a -20
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2 votes
Factorise a squared - a -20

User Rob Nicholson
by
8.3k points

1 Answer

6 votes

Answer:

(a-5)(a+4)

Explanation:


a^(2)-a-20


a^(2)+4a-5a-20

a(a+4) -5(a+4)

(a-5)(a+4)

User INS
by
8.3k points
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