Algebra Demystified 2nd Ed

180 algebra De mystif ieD

eMystiFied / algebra deMystiFied / gibilisco / 000-0 / Chapter 6

16.^363
3

tt^32 t

t

−+ (^) =
a. ()t− 12
b. t^2 − 1
C. ()t
t
− (^12)
d. −+ 53 tt^2
17. xx (^22) +−^46 + 23 xx−−^32 =
a.^1311
3221
x
xxx

• ()()−+()+
  b.^1113
  3221
  x
  xxx


• 
  

  ()+−()()+
  C.^1113
  3221
  x
  xxx

  
  


• 
  

  ()()−+()+
  d.^1311
  3221
  x
  xxx

  
  


• 
  

  ()+−()()+

  
  

18. (  7131 xx+− )(  ) =
    a. 21 x^2 − 1
    b. 21 xx^2 −+ 41
    C. 21 xx^2 +− 41
    d. 21 xx^2 −− 41
    19.^6
    920

1

xx^22 −+ x 25

+

−

=

a.^724

545

x

xxx

+

()−−()()+

b.^724

545

x

xxx

+

()−+()()+

C.^726

545

x

xxx

+

()−−()()+

d.^726

545

x

xxx

+

()−+()()+