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Aleksandr [31]
2 years ago
13

Factorise completely

Mathematics
1 answer:
Andreyy892 years ago
4 0
1. Number that adds up to -12 and multiplied by the same # that gives u -13. Set it up like this because both are negative so, u need 1 negative and 1 positive.
(x-13)(x+1)

2. Same rule applies. GCF
8y(4y+1)

3. (x+3)(x-3)
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