Seudónimo
Seudónimo
20-07-2017
Mathematics
contestada
Factor 4x^2 - 25 show your work Help Plz!
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choixongdong
choixongdong
20-07-2017
4x^2 - 25
= (2x)^2 - 5^2 .................using a^2 - b^2 = (a+b)(a-b)
= (2x + 5)(2x - 5)
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