SOLUTION: Please help me factor these, would you mind showing the steps and explaining it to me..Thanks, Im so stressed. Factor completely: 49y^2-49w^2 Factor completely: y^4-23y^2-5

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: Please help me factor these, would you mind showing the steps and explaining it to me..Thanks, Im so stressed. Factor completely: 49y^2-49w^2 Factor completely: y^4-23y^2-5      Log On


   

Question 326987: Please help me factor these, would you mind showing the steps and explaining it to me..Thanks, Im so stressed.
Factor completely:
49y^2-49w^2
Factor completely:
y^4-23y^2-50

I need someone to show me the steps on how to solve these :(
Answer by mananth(16946) About Me  (Show Source):
You can put this solution on YOUR website!
Factor completely:
49y%5E2-49w%5E2
49%28y%5E2-w%5E2%29
this is of the form a%5E2-b%5E2+=+%28a%2Bb%29%28a-b%29
49%28y%2Bw%29%28y-w%29
Factor completely:
y^4-23y^2-50
y%5E4-25y%5E2%2B2y%5E2-50
y%5E2%28y%5E2-25%29%2B2%28y%5E2-25%29
%28y%5E2-25%29%28y%5E2%2B2%29
%28y%2B5%29%28y-5%29%28y%5E2%2B2%29