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2014-04-15T21:36:52+03:00
X²+4x-3x-12-6x+4=x²-8x+16
x²-5x-8-x²+8x-16=0
3x=24
x=24/3
x=8
3 5 3
2014-04-15T21:37:49+03:00
X²+4x-3x-12-6x+4=x²-8x+16
-5x-8=-8x+16
-5x+8x=16+8
3x=24
x=8