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Mathematics 17 Online
OpenStudy (anonymous):

16x^4-25 factor completely

OpenStudy (anonymous):

Difference of squares.

OpenStudy (anonymous):

what about x^2+4

OpenStudy (anonymous):

That won't work because 4 is not a factor of 25.

OpenStudy (anonymous):

16 is a perfect square (4 * 4), x^4 is a perfect square (x^2 * x^2), and 25 is a perfect square (5 * 5). The factors will be two binomials of the form (a+b)(a-b).

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