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Mathematics 9 Online
OpenStudy (anonymous):

Expand and simplify: (3a – 2)(4a + 5) A. 12a2 + 23a + 10 B. 12a2 – 10 C. 12a2 – 7a – 10 D. 12a2 + 7a – 10

OpenStudy (anonymous):

It's "A" right?

OpenStudy (anonymous):

ok, multiply each term with the corresponding term. SO you should have this. |dw:1338944910428:dw| Can you go on from there?

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