Factor the polynomial. 49 - 121p^2

Holt McDougal Larson Algebra 1 Common Core Edition page 545 number 6

Asked by Dee Dee on 26 Mar 09:39

Last updated by anonymous on 27 Mar 13:43

Answered by CherieS on 27 Mar 13:43

49 - 121p^2

-121p2+49

-(121p2 -49)

- (11p )(11p ) ( -7)( +7)

-(11p-7)(11p+7)

Factor:

-(11 p-7) (11 p+7)

Check:

-(11 p-7) (11 p+7)

-(11p)(11p) (11p)(+7) (-7)(11p) (-7)(+7)

-(121p2 +77p -77p -49

-(121p2-49)

Simplify:

-(11p-7)=0

Solve:

-(11p-7)=0

-11p+7=0

-11p+7-7=0-7

-11p=-7

-11p/-11=-7/-11

p=7/11

Simplify:

(11 p+7)=0

Solve:

(11 p+7)=0

11p+7-7=0-7

11p=-7

11p/11=-7/11

p=-7/11