Respuestas

2012-10-16T23:27:34+02:00

10 (x² -18x + 810)- 9(36x²-60x+25)=2(16x²-8x+1) + 5(4x²+4x+1)

(x² -180x+810)-(-324x² +540x-225)=(32x² -16x+2) +(20x²+20x+5)

325x² -720x + 1035 = 52x² +36x +7

325x²- 720x + 1028= 52x² +36x

325x² - 52x²+ 1028 = 36x + 720x

273x²+1028= 756x

273x + 1028= 756

273x= 756-1028

273x=-272

x=273/272