Math, asked by pleasehelpme85, 1 year ago

ifIf a+b=1 then proof that a^3+b^3-ab=(a^2-b^2)^2​

Answers

Answered by brunoconti
1

Answer:

Step-by-step explanation:

Attachments:
Answered by mkrishnan
1

Answer:

Step-by-step explanation:

a^3  + b^3 -ab = [a+b] [ a^2 +b^2 -ab ]   -ab

                       = [ 1  ] [ a^2 +b^2 -ab]  - ab

                      =  a^2 +b^2 -ab  - a b

                      =  a^2 +b^2 - 2ab

                      = [a-b]^2

                      = [a-b]^2 [ 1 ]

                         = [a-b]^2 [ 1 ]^2

                        =[a-b]^2[a+b]^2

                        = [[a-b][a+b]]^2

                        =[a^2-b^2]^2


mkrishnan: THANK U
pleasehelpme85: u r welcome
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