2X-9 2X^2-3X+7①Y= ______ ②Y= __________ ③ X(3-X)≤X(X+2)-12X+5 2X^2-3X+12X-9 2X^2-3X+7①Y= ______ ②Y= __________ ③ X(3-X)≤X(X+2)-12X+5 2X^2-3X+1

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2X-9 2X^2-3X+7①Y= ______ ②Y= __________ ③ X(3-X)≤X(X+2)-12X+5 2X^2-3X+12X-9 2X^2-3X+7①Y= ______ ②Y= __________ ③ X(3-X)≤X(X+2)-12X+5 2X^2-3X+1
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2X-9 2X^2-3X+7①Y= ______ ②Y= __________ ③ X(3-X)≤X(X+2)-12X+5 2X^2-3X+12X-9 2X^2-3X+7①Y= ______ ②Y= __________ ③ X(3-X)≤X(X+2)-12X+5 2X^2-3X+1
2X-9 2X^2-3X+7
①Y= ______ ②Y= __________ ③ X(3-X)≤X(X+2)-1
2X+5 2X^2-3X+1
2X-9 2X^2-3X+7
①Y= ______ ②Y= __________ ③ X(3-X)≤X(X+2)-1
2X+5 2X^2-3X+1

2X-9 2X^2-3X+7①Y= ______ ②Y= __________ ③ X(3-X)≤X(X+2)-12X+5 2X^2-3X+12X-9 2X^2-3X+7①Y= ______ ②Y= __________ ③ X(3-X)≤X(X+2)-12X+5 2X^2-3X+1
我觉得你是要求x的取值范围吧?求x是不可能的……
①令分母不为零:2x+5≠0,解得:x≠-2.5
②令分母不为零:2X²-3X+1≠0,解得x≠0.2且x≠1
③将不等式化简整理(打开括号,合并同类项,移到不等式一边),整理得:2x²-x-1≥0,解得:x≥1或x≤-0.5
希望我是对的!