解不等式:(2x-5)²+(3x+1)²>13x(x²-10)

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解不等式:(2x-5)²+(3x+1)²>13x(x²-10)解不等式:(2x-5)²+(3x+1)²>13x(x²-10)解不等式:(2x

解不等式:(2x-5)²+(3x+1)²>13x(x²-10)
解不等式:(2x-5)²+(3x+1)²>13x(x²-10)

解不等式:(2x-5)²+(3x+1)²>13x(x²-10)
(2x-5)²+(3x+1)²>13x(x²-10)
展开:4x²-20x+25+9x²+6x+1>13x²-130
移项整理得:14x<156,得到:x<78/7

(2x-5)²+(3x+1)²>13(x²-10)
-14x>-156
x<78/7