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belka [17]
3 years ago
12

If mn, solve for x. (3x + 9) (x + 21)

Mathematics
1 answer:
Sloan [31]3 years ago
6 0

2

3x. + 63x + 9x + 189

Step-by-step explanation:

<em>Use</em><em> </em><em>distributive</em><em> </em><em>law</em><em>,</em><em> </em><em>in</em><em> </em><em>other</em><em> </em><em>words</em><em> </em><em>multiply</em><em> </em><em>the</em><em> </em><em>first</em><em> </em><em>bracket</em><em> </em><em>terms</em><em> </em><em>by</em><em> </em><em>the</em><em> </em><em>second</em><em> </em><em>bracket</em><em> </em><em>terms</em><em> </em>

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