31Dec

(3х+1)^2-(3х-2)*(2+2х)=17

АКР Алгебра 1 1

(3х+1)^2-(3х-2)*(2+2х)=17

Posted by АКР | Posted at Dec 31, 2013 | Categories: Алгебра

Answers

АнтонОхотников
АнтонОхотников

9x^2+1-6x-6x^2+4+4x=17 3x^2-2x=12 x(3x-2)=12 x=12 или  3x=14                  x=4.7

Dec 31, 2013 16:06

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