kyrarichins
kyrarichins kyrarichins
  • 23-07-2017
  • Mathematics
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Need help. First to answer correctly gets brainliest

Need help First to answer correctly gets brainliest class=

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irspow
irspow irspow
  • 23-07-2017
(4b^2-16) is an example of what is called a difference of squares because each term is a squared value.  It has the form:

(a^2-b^2) which always factors to (a-b)(a+b)

In this case the square root of 4b^2=2b and the square root of 16=4 so its factors are:

(2b+4)(2b-4)  now we can factor out 2 from both terms...

2(b+2)2(b-2) to get

4(b+2)(b-2)  (answer B.)
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Bebong Bebong
  • 23-07-2017
It is C. You need to apply formula A^2 - B^2 = (A+B)(A-B) 
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