5272道题目5525 条题源记录 · 相同内容已合并
分式方程与有理函数进阶
\( \frac{\left(x+9\right)\left(x-9\right)}{x+9}=7 \)
What is the solution to the given equation?
原库参考解析
分式方程与有理函数基础
Which expression is equivalent to \( \frac{8x\left(x-7\right)-3\left(x-7\right)}{2x-14} \) , where \( x>7 \)?
原库参考解析
分式方程与有理函数挑战
f(x) = x3 -9x
g(x) = x2 - 2x -3
Which of the following expressions is equivalent to \( \frac{f\left(x\right)}{g\left(x\right)} \) , for x > 3?
原库参考解析
分式方程与有理函数挑战
Which expression is equivalent to \( \frac{y+12}{x-8}+\frac{y\left(x-8\right)}{x^2y-8xy} \) ?
原库参考解析
分式方程与有理函数挑战
The equation \( \frac{x^2+6x-7}{x+7}=ax+d \) is true for all x\( ≠ \) -7, where a and d are integers. What is the value of a + d ?
原库参考解析
分式方程与有理函数挑战
Which of the following expressions is equivalent to \( \frac{x^2-2x-5}{x-3} \) ?
原库参考解析
分式方程与有理函数挑战
\( \frac{2}{x-2}+\frac{3}{x+5}=\frac{rx+t}{\left(x-2\right)\left(x+5\right)} \)
The equation above is true for all x > 2 , where r and t are positive constants. What is the value of rt ?
原库参考解析
分式方程与有理函数挑战
Which expression is equivalent to \( \frac{4}{4x-5}-\frac{1}{x+1} \) ?
原库参考解析
分式方程与有理函数挑战
\( \frac{x^2-c}{x-b} \)
In the expression above, b and c are positive integers. If the expression is equivalent to x + b and x \( ≠ \) b, which of the following could be the value of c ?
原库参考解析
分式方程与有理函数挑战
\( \frac{4x^2}{x^2-9}-\frac{2x}{x+3}=\frac{1}{x-3} \)
What value of x satisfies the equation above?
原库参考解析
分式方程与有理函数挑战
\( \frac{1}{x^2+10x+25}=4 \)
If x is a solution to the given equation, which of the following is a possible value of x +5 ?
原库参考解析
分式方程与有理函数基础
The function \( f \) is defined by \( f\left(x\right)=\frac{16}{x} \). What is the value of \( f\left(x\right) \) when \( x=17 \)?
原库参考解析
