factorize = 9x^2+6x+1-25y^2
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Answer:
Step-by-step explanation:
(9x^2 +6x +1 ) - 25y^2
= (3x + 1)^2 - (5y)^2,let a=(3x + 1),b=(5y)
a^2 - b^2 =(a+b)(a-b)
=(3x + 1 +5y)(3x + 1 -5y)
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