5272道题目5525 条题源记录 · 相同内容已合并
二次式展开・配方与等价形式进阶
Which expression is equivalent to \( 5x^4+35w \)?
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 \( 18(x^2-8) \) ?
参考答案
二次式展开・配方与等价形式进阶
Which expression is equivalent to \( 6xy(2x^2+7y) \) ?
参考答案
二次式展开・配方与等价形式挑战
Which expression is equivalent to \( 9x^3+108x^2y+xy^2+12y^3 \)?
参考答案
二次式展开・配方与等价形式挑战
Which expression is equivalent to \( (3x+7)^2-(x-6) \)?
参考答案
二次式展开・配方与等价形式进阶
Which of the following is a factor of \( −24x^2−6x \)?
参考答案
二次式展开・配方与等价形式挑战
The expression \( (7x+y)(x+7y)(3x+y) \) is equivalent to \( ax^3+bx^2y+cxy^2+dy^3 \), where a,b,c and d are constants. What is the value of c?
参考答案
二次式展开・配方与等价形式进阶
Which expression is equivalent to \( 9x^3+72x^2y+xy^2+8y^3 \)?
参考答案
二次式展开・配方与等价形式挑战
Which of the following expressions is(are) a factor of \( 5x^2+22x−48 \)?
Ⅰ. x−6
Ⅱ. 5x−8
参考答案
二次式展开・配方与等价形式进阶
Which expression is equivalent to \( 7x^3+4x-5-9x^2+6x+3 \) ?
参考答案
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?
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?
参考答案
二次式展开・配方与等价形式挑战
\( (4x+10)(2x+1)−(2x−14) \)
For all values of x, the given expression is equivalent to which of the following?
I. \( 8x^2+22x+24 \)
II. \( 8x^2+24x+10-2x-14 \)
For all values of x, the given expression is equivalent to which of the following?
I. \( 8x^2+22x+24 \)
II. \( 8x^2+24x+10-2x-14 \)
参考答案
