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9x²-4-2x>9x²-6x+1-x
-4-2x>-7x+1 /+2x
-4>-5x+1 / -1
-5>-5x /:(-5)
1<x
b)4(x+6)²-3x>(2x-1)(2x+1)+3
4(x²+12x+36)-3x>4x²-1+3
4x²+48x+144-3x>4x²+2
45x+144>2 /-144
45x>-142 /:45
x>-3,1(5)
c)(2x-5)(2x+5)-4(x+2)²<24-5x
4x²-25-4(x²+4x+4)<24-5x
4x²-25-4x²-16x-16<24-5x
-41-16x<24-5x /+5x
-41-11x<24 /+41
-11x<65 / :(-11)
x>-5,09