1. First option (3x-5)(3x-5)
2. Fourth option (2d+11)(2d+11)
3. First thing I do is pull out 4b^2, this leaves us with 4b^2(4b^2-9)
4b^2-9 factors to (2b-3)(2b+3)
Combining all of these we get 4b^2(2b-3)(2b+3) which is the second option
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