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What is the completely factored form of 25x^4-16y^2
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What is the completely factored form of 25x^4-16y^2

User Astrada
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2 Answers

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25x^4-16y^2 is the difference of 2 squares: (5x^2)^2 - (4y)^2

Recall that a^2 - b^2 = (a-b)(a+b).

Here, (5x^2 - 2y)(5x^2 + 2y) (answer)
User Aaroncarsonart
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1 vote
The answer is (5x^2+4y)(5x^2-4y)
User Cachique
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