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ipn [44]
3 years ago
12

Find the product (r-9)(r+4)

Mathematics
2 answers:
AVprozaik [17]3 years ago
7 0

Answer:

2r - 36

Step-by-step explanation:

r x r = 2r

-9 x 4 = -36

Mrrafil [7]3 years ago
3 0

Answer:

r^{2} -5r-36

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