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Natasha2012 [34]
3 years ago
15

Simplify: (3a – 4b)(a + b). . A.. 3a2– ab – 4b2. . B.. 3a2 – 7ab – 4b2. . C.. 3a2 – 12ab – 4b2. . D.. 3a2 + ab – 4b2.

Mathematics
1 answer:
-Dominant- [34]3 years ago
3 0
To simplify the expression, we distribute terms accordingly. It is done as follows:

<span>(3a – 4b)(a + b)
3a</span>² + 3ab -4ab -4b²
3a² - ab -4b²

Therefore, the correct answer is option A, <span>3a^2– ab – 4b^2. 

Hope this answers the question. Have a nice day. Please feel free to ask more questions.</span>
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