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 \( 2xy+14x^2y+16xy^2 \)?
原库参考解析
二次式展开・配方与等价形式基础
Which expression is a factor of \( 3x^2+57x+15 \) ?
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 \( 42x^3+7x \)?
原库参考解析
二次式展开・配方与等价形式进阶
The expression \( 15x(x^2+9) \) is equivalent to \( ax^b+cx \) , where a, b, and c are constants. What is the value of abc?
原库参考解析
二次式展开・配方与等价形式挑战
Which of the following is a factor of the expression \( 2x^2+(18r+5)x+45r \) , where r is a nonzero constant?
I. \( x+9r \)
II. \( 2x+5r \)
原库参考解析
二次式展开・配方与等价形式进阶
If \( 7(x-3)^2=252 \), what is the value of \( x^2-6x \)?
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 \( (9x^3+17x)-(4x^2+7x) \)?
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 \( (4a^2-9ab+7b^2)-(3a^2+ab-2b^2) \) ?
原库参考解析
二次式展开・配方与等价形式进阶
The expression \( (5x+2)(x+4) \) can be written in the form \( ax^2+bx+c \), where a, b, and c are constants. What is the value of \( a+b+c \)?
原库参考解析
二次式展开・配方与等价形式挑战
The expression \( (6x+5)(x+2) \) can be written in the form \( ax^2+bx+c \) , where a, b, and c are constants. What is the value of \( a-b+c \)?
原库参考解析
二次式展开・配方与等价形式挑战
Which expression is equivalent to \( 220x^2+70 \)?
原库参考解析
二次式展开・配方与等价形式进阶
The expression \( (3x+5)(8x−7) \) can be written in the form \( ax^2+bx+c \) , where a, b, and c are constants. What is the value of \( a+b \)?
原库参考解析
