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Factor completely w^4-2401
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Factor completely w^4-2401

User Josketres
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2 Answers

3 votes

w^4-2.401 \\ =(w^2+49)(w^2-49) \\ =(w^2+49)(w-7)(w+7)
User Lucas Huang
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w^4-2401=(w^2)^2-49^2=(w^2-49)(w^2+49)=(w^2-7^2)(w^2+49)\\\\=(w-7)(w+7)(w^2+49)\\\\------------------------------\\\\a^2-b^2=(a-b)(a+b)
User Tombatron
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