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109 sats \ 0 replies \ @WeAreAllSatoshi 15 Oct 2024 \ on: [Daily puzzle] Magic product puzzle science

$(a + b) (a + b) = 10 \times 10 = 100$
$a^{2} + ba + ab + b^{2} = 100$
$a^{2} + b^{2} + 2 ab = 100$
$a^{2} + b^{2} + 2 \times 21 = 100$
$a^{2} + b^{2} + 42 = 100$
$a^{2} + b^{2} = 58$