SOLUTION: Factor completely: -2w^4 + 1250 a^4 + 3a^3+ 27a + 81 x^8 - 16x^4

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Question 771983: Factor completely:
-2w^4 + 1250
a^4 + 3a^3+ 27a + 81
x^8 - 16x^4

Answer by Edwin McCravy(20054)   (Show Source): You can put this solution on YOUR website!

-2w4 + 1250

-2(w4 - 625)

-2(w4 - 54)

-2(w2 - 52)(w2 + 52)

-2(w - 5)(w + 5)(w2 + 52) 

-----------------------------

a4 + 3a3 + 27a + 81

a3(a+3) + 27(a+3)

(a+3)(a3+27)

(a+3)(a3+33)

(a+3)(a+3)(a2+ac+b2)

(a+3)2(a2+ac+b2)

-----------------------------------

x8 - 16x4

x4(x4 - 16)

x4(x2 - 4)(x2 + 4)

x4(x - 2)(x + 2)(x2 + 4)

Edwin
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