解不等式:(2x-5)²+(3a+1)²>13x(x²-10)
问题描述:
解不等式:(2x-5)²+(3a+1)²>13x(x²-10)
(2x-5)²+(3x+1)²>13x(x²-10)
答
(2x-5)²+(3x+1)²>13x(x²-10)
4x²-20x+25+9x²+6x+1>13x^3-130x
13x^3-13x²-116x-26<0