A mathematical problem in the first chapter of compulsory senior one: the square of quadratic function y = ax - 4x + a-3d for any x belongs to R, the value of Y is negative, find the range of A A mathematical problem in the first year of senior high school: the square of quadratic function y = ax-4x + a-3d for any x belongs to R, the value of Y is negative, and the range of a is calculated I'm sorry, there is a mistake in the title. If there is no D, it's a mistake! What is correct is a mathematical problem that must be solved in grade one of senior high school: the square of quadratic function y = ax - 4x + A-3. For any x belongs to R, the value of Y is negative, and the range of a is calculated

A mathematical problem in the first chapter of compulsory senior one: the square of quadratic function y = ax - 4x + a-3d for any x belongs to R, the value of Y is negative, find the range of A A mathematical problem in the first year of senior high school: the square of quadratic function y = ax-4x + a-3d for any x belongs to R, the value of Y is negative, and the range of a is calculated I'm sorry, there is a mistake in the title. If there is no D, it's a mistake! What is correct is a mathematical problem that must be solved in grade one of senior high school: the square of quadratic function y = ax - 4x + A-3. For any x belongs to R, the value of Y is negative, and the range of a is calculated

It must satisfy a