Question

完全平方公式？

这个配方是什么样的

Answer 1

(1+λ)X²+6X+[3/(1+λ)]²
=(1+λ)(X²+6/(1+λ)X)+[3/(1+λ)]²
=(1+λ)(X²+6/(1+λ)X+[3/(1+λ)]²)-(1+λ)[3/(1+λ)]²+[3/(1+λ)]²
=(1+λ)(X+3/(1+λ))²-λ[3/(1+λ)]²