Prove that using: So far I have got: (m*m)(m*m)-(n*n)(n*n)+4(m*m)(n*n)=(m*m)(m*m)-(n*n)(n*n) What can I do with 4(m*m)(n*n)? Can I do (m*m)+(m*m)+(m*m)+(m*m)*(n*n)+(n*n)+(n*n)+(n*n) ??? ~Cyf
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Originally Posted by Mukilab Prove that using: For this proof to work you must use the LHS to show the RHS Now factor this term and you will get
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