求所有满足 x + y = 9 且 xy = 14 的有序数对 (x, y)。
Correct answer(s):
- (7, 2)
- (2, 7)
Subject
Algebra
Practice related MCQ quizzes and improve step by step.
Quizzes in Algebra
求所有满足 x + y = 2 且 xy = -15 的有序数对 (x, y)。
Correct answer(s):
- (-3, 5)
- (5, -3)
求所有满足 x + y = 4 且 xy = 3 的有序数对 (x, y)。
Correct answer(s):
- (1, 3)
- (3, 1)
求所有满足 x + y = -1 且 xy = -20 的有序数对 (x, y)。
Correct answer(s):
- (-5, 4)
- (4, -5)
求所有满足 x + y = 7 且 xy = 10 的有序数对 (x, y)。
Correct answer(s):
- (5, 2)
- (2, 5)
求所有满足 x + y = 7 且 xy = 6 的有序数对 (x, y)。
Correct answer(s):
- (6, 1)
- (1, 6)
求所有满足 x + y = -4 且 xy = 0 的有序数对 (x, y)。
Correct answer(s):
- (0, -4)
- (-4, 0)
求所有满足 x + y = -5 且 xy = -14 的有序数对 (x, y)。
Correct answer(s):
- (-7, 2)
- (2, -7)
求所有满足 x + y = -5 且 xy = 4 的有序数对 (x, y)。
Correct answer(s):
- (-1, -4)
- (-4, -1)
求所有满足 x + y = 7 且 xy = 10 的有序数对 (x, y)。
Correct answer(s):
- (5, 2)
- (2, 5)
求所有满足 x + y = -7 且 xy = 10 的有序数对 (x, y)。
Correct answer(s):
- (-2, -5)
- (-5, -2)
求所有满足 x + y = 7 且 xy = 0 的有序数对 (x, y)。
Correct answer(s):
- (7, 0)
- (0, 7)
求所有满足 x + y = 10 且 xy = 21 的有序数对 (x, y)。
Correct answer(s):
- (7, 3)
- (3, 7)
求所有满足 x + y = -3 且 xy = 0 的有序数对 (x, y)。
Correct answer(s):
- (0, -3)
- (-3, 0)
求所有满足 x + y = 0 且 xy = -9 的有序数对 (x, y)。
Correct answer(s):
- (-3, 3)
- (3, -3)
求所有满足 x + y = -7 且 xy = 12 的有序数对 (x, y)。
Correct answer(s):
- (-4, -3)
- (-3, -4)
解方程组 5x + 2y = 20 和 -2x + 3y = -8。
Correct answer(s):
- x=4, y=0
解方程组 5x + 1y = 31 和 3x + 4y = 5。
Correct answer(s):
- x=7, y=-4
解方程组 5x + 3y = 5 和 -2x + 4y = -28。
Correct answer(s):
- x=4, y=-5
解方程组 4x + 1y = 4 和 2x + -1y = -4。
Correct answer(s):
- x=0, y=4