Answers

2016-07-19T17:28:43+08:00
Tanong mo nalang kay mr. google bess
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2016-07-19T18:43:46+08:00
Difference of two squares : 
 
 4x^2-9=(2x+3)(2x-3)
 16a^2-25b^2=(4a+5b)(4a-5b)
 4x^8-9y^2=(2x^4+3y)(2x^4-3y)

PST : 
 
   x^2+8x+16=(x+4)^2
   Sorry, but I can't answer #5. 
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