factor of (2x+5y)^2 -1
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Answer:
(2x + 5y -1)(2x + 5y + 1)
Step-by-step explanation:
(2x+5y)^2 -1
=> (2x+5y)^2 -1^2 (Exponential form)
a2 - b2 = (a+b)(a-b)
=> (2x + 5y -1)(2x + 5y + 1)
Hence, (2x+5y)^2 -1 = (2x + 5y -1)(2x + 5y + 1)
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