Ответ:
81x^2-126x+49-10<=81x^2-9
-126x+39<=-9
48<=126x
x>=24/63=8/21
[8/21;∞)
4+36+121x^2-132x>25x+121x^2+3x
40-132x>28x
40>160x
x<40/160
x<1/4
(-∞;1/4)
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Ответ:
81x^2-126x+49-10<=81x^2-9
-126x+39<=-9
48<=126x
x>=24/63=8/21
[8/21;∞)
4+36+121x^2-132x>25x+121x^2+3x
40-132x>28x
40>160x
x<40/160
x<1/4
(-∞;1/4)