478(4) плиз решите срочно!!!. Created by rus83. algebra-ru

478(4) плиз решите срочно!!!...

August 2021 2 10 Report

478(4) плиз решите срочно!!!

ganeevadel2014 (ad+cbe)²+c(ae-bd)²=a²d²+2adcbe+c²b²e²+c(a²e² -2aebd+b²d²)=

=a²d²+2adcbe+c²b²e²+a²e²c-2aebdc+b²d²c=

=a²d²+c²b²e²+a²e²c+b²d²c=

=(a²d²+a²e²c)+(c²b²e²+b²d²c)=a²(d²+e²c)+b²c(ce²+d²)=

=(d²+ce²)(a²+b²c)=(a²+cb²)(d²+ce²)

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