Question Number 131525 by mathlove last updated on 05/Feb/21 $$\:{if}\:\:\:\left({a}−{b}\right)\left({a}+{b}\right)=\mathrm{23} \\ $$$${then}\:\:{faind}\:\:\:{a}\centerdot{b}=? \\ $$ Answered by mr W last updated on 05/Feb/21 $${no}\:{unique}\:{solution}\:{for}\:{a},{b}\in{R}. \\ $$$${for}\:{a},{b}\in{Z}:…