Question

expand the following- ( a²+1 )²​

Answer 1

Answer:

a⁴+1+2a²

Explanation

(a+b)²= a²+b²+2ab

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Answer 2

Answer:

(a²+1)=.(a²)²+2×a²×1+(1)² {(a+b)² =a²+2ab+b² }

= a⁴+2a²+10