2. 外语
  3. The equation ax2 = bx2−1, where a and b are constants, has two real solutions Quantity A: a Quantity B: b

The equation ax2 = bx2−1, where a and b are constants, has two real solutions Quantity A: a Quantity B: b

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问题 The equation ax2 = bx2−1, where a and b are constants, has two real solutions
Quantity A: a
Quantity B: b
选项 A、Quantity A is greater.
B、Quantity B is greater.
C、The two quantities are equal.
D、The relationship cannot be determined from the information given.
答案B
解析 ax2=bx2-1
(a-b)x2+1=0
△=02-4(a-b)＞0→a＜b
故答案为B。
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