Решите неравенство относительно х:
1) 5х (х - 6) < х (2х + 1) - 3х(4 - х)
2) 2 - х - (2 - х /3) ≥ (7х - 2 /4) - (5х/6)
(2 - х /3) ; (7х - 2 /4) ; (5х/6) -----дроби
1) 5x(x-6)<x(2x+1)-3x(4-x)
5x^2-39<2x^2+x-12x+3x^2
5x^2-30x-5x ^2+11x<0
-19x<0.
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Answers & Comments
1) 5x(x-6)<x(2x+1)-3x(4-x)
5x^2-39<2x^2+x-12x+3x^2
5x^2-30x-5x ^2+11x<0
-19x<0.