5272道题目5525 条题源记录 · 相同内容已合并
二次式展开・配方与等价形式挑战
\( 57x^{10}+bx^5+26 \)
The given expression, where b is a constant, is equivalent to \( (3x^5+q)(rx^5+2) \) , where q and r are constants. What is the value of b?
The given expression, where b is a constant, is equivalent to \( (3x^5+q)(rx^5+2) \) , where q and r are constants. What is the value of b?
参考答案
二次式展开・配方与等价形式基础
Which expression is equivalent to \( 20x^2 \)?
参考答案
二次式展开・配方与等价形式进阶
The expression \( (3x+4)(x+6) \) can be written in the form \( ax^2+bx+c \), where a, b, and c are constants. What is the value of \( a+b+c \)?
参考答案
二次式展开・配方与等价形式基础
Which expression is equivalent to \( 143x^2 \)?
参考答案
二次式展开・配方与等价形式挑战
Which expression is equivalent to \( 3x(x+9) \)?
参考答案
二次式展开・配方与等价形式挑战
The expression \( (3x+2)(x+6) \) can be written in the form \( ax^2+bx+c \), where a, b, and c are constants. What is the value of \( a+b+c \)?
参考答案
二次式展开・配方与等价形式进阶
Which expression is equivalent to \( 14\left(x^2-100y^2\right) \)?
原库参考解析
二次式展开・配方与等价形式进阶
Which expression is equivalent to \( 6x^2+18x \)?
原库参考解析
二次式展开・配方与等价形式挑战
\( 51x^{14}+bx^7+38 \)
The given expression, where b is a constant, is equivalent to \( (3x^7+q)(rx^7+2) \), where q and r are constants. What is the value of b ?
原库参考解析
二次式展开・配方与等价形式挑战
\( (5x+10)(2x+1)−(3x−16) \)
For all values of x, the given expression is equivalent to which of the following?
I. \( 10x^2+22x+26 \)
II. \( 10x^2+25x+10-3x-16 \)
原库参考解析
二次式展开・配方与等价形式进阶
Which expression is equivalent to \( 2\left(x-\frac{9}{2}\right)(x+8) \) ?
原库参考解析
二次式展开・配方与等价形式基础
Which expression is equivalent to \( 9x^2+5x \) ?
原库参考解析
