Question

solve the polynomial using indentities x*2-1​

Answer 1

Answer:

which i

identification

Step-by-step explanation:

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Answer 2

Answer:

Using the identity: (a+b)2=a2+b2+2ab.

Given:(x+x1)2 and apply the above identity by taking a=x and b=x1 in the given identity.

We get, (x+x1)2=x2+(x1)2+(2×x×x1)=x2+x21+2

 

Hence, (x+x1)2=x2+2+x21.