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Alchen [17]
3 years ago
6

(S^2 +r^2)^2 Please show me how you got the answer.

Mathematics
1 answer:
BabaBlast [244]3 years ago
5 0
(s^2+r^2)^2=s^4+2r^2s^2+r^4\\\\
(a+b)=a^2+2ab+b^2
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