Question 767253
12. x3 - 12x2 + 48x - 64 
A  (x - 4)(x + 4)2 
B (x-4)3 
C (x + 4)3 
D (x + 4)(x - 4)2 
E  (x - 4)(x2 + 2x + 1) 
F cannot be factored 


ans:B (x-4)3 
C

13. -2w4 + 1250 
A -2(w2 + 25) 
B (w - 5)(w + 5)(w2 + 25) 
C -2(w - 5)(w2 + 25) 
D -2(w - 5)(w - 5)(w2 + 25) 
E  -2(w - 5)(w + 5)(w2 + 25) 
F  cannot be factored 


ans:E  -2(w - 5)(w + 5)(w2 + 25) 

14. a9 - 1 
A (a3 - 1)(a6 + a3 + 1) 
B (a + 1)(a6 + a3 + 1) 
C (a - 1)(a2 - a - 1)(a6 + a3 + 1) 
D (a - 1)(a2 + a + 1)(a6 + a3 + 1) 
E (a3 + a + 1)(a6 + a3 + 1) 
F cannot be factored  


ans:A (a3 - 1)(a6 + a3 + 1) 


15. a4 + 3a3+ 27a + 81  
A  (a2 + 3a - 9)(a2 + 2a + 3) 
B (a - 3)(a2 + 3a + 9) 
C (a + 3)(a2 + 2a + 3) 
D (a + 3)(a2 + 4a + 9) 
E  [(a + 3)2](a2 - 3a + 9) 
F  cannot be factored 



E  [(a + 3)2](a2 - 3a + 9)