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  • 17-04-2020
  • Mathematics
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  • 17-04-2020

A) [tex] \sum_{r=0}^{2} { 2 \choose r} (x^2)^{2-r}[/tex]

$=\boxed{ x^4+2x^2+1}$

B) Associativity property of addition.

C) Applying Binomial theorem to the expression yields $x^4+2x^2+1$

D) [...] using the Associativity property of addition.

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