Question

please give the answer fast

Answer 1

HEYA MATE, HERE IS UR ANSWER _________________

(a+b)^2=a^2+b^2+2ab

21^2 = a^2+b^2+2×108

441=a^2+b^2+216

441-216=a^2+b^2

225=a^2+b^2


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Answer 2

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