SOLUTION: Factor x^4 - 625

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Question 150828: Factor
x^4 - 625
Found 2 solutions by mangopeeler07, jojo14344:
Answer by mangopeeler07(462) About Me  (Show Source):
You can put this solution on YOUR website!
x^4-625

Factor (difference between two perfect squares)
(x^2-25)(x^2+25)

Factor x^2-25 (again, difference between two perfect squares)
(x-5)(x+5)(x^2+25)

So x^4-625 factors to
(x-5)(x+5)(x^2+25)

Answer by jojo14344(1513) About Me  (Show Source):
You can put this solution on YOUR website!
x%5E4-625 = %28x%5E2%2B25%29%28x%5E2-25%29
= %28x%5E2%2B25%29%28x%2B5%29%28x-5%29* 'x" has 3 values,
-------> x%5E4=625
-------> %2B-5%5E4=625 or 5%5E4=625
-------> 625=625
thank you,
Jojo