ОДЗ: x²+35x>0
x(x+35)>0
x=0 x= -35
+ - +
--------- -35 ----------- 0 ------------
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x∈(-∞; -35)U(0; +∞)
x²+35x>6²
x²+35x-36>0
x²+36x-x-36>0
x(x+36)-(x+36)>0
(x+36)(x-1)>0
x= -36 x=1
+ - +
--------- -36 ------------- 1 ------------
\\\\\\\\\\\ \\\\\\\\\\\\\\\\
x∈(-∞; -36)U(1; +∞)
{x∈(-∞; -35)U(0; +∞)
{x∈(-∞; -36)U(1; +∞)
x∈(-∞; -36)U(1; +∞)