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Factor a ^2 - a - 20
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1 vote
Factor
a ^2 - a - 20

User Jamie
by
8.7k points

1 Answer

2 votes
The factors of -20 that sums to -1 are,


- 5, \: 4
Hence,


{a}^(2) - a - 20 =(a-5)(a+4)
User Zlatanski
by
8.8k points
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