Автор - radachkatatarocka

(х-5)(2х+3)-(х+4)(4-х)=2х+5 приведите к виду ах2+bx+c=0

Ответ

Автор - xadica2014
2x^+3x-10x-15-4x+x^-16+4x=2x+5
3x^-7x-2x-31-5=0
3x^-9x-36=0 (3)
x^-3x-12=0

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