Find two integers which when added give the first number,and when multiplied give the second number
(I)3,-18
(II)4,-5
(III)-21,110
(IV)16,63
Quadratic Equations
2013-04-22 2:23 am
回答 (2)
2013-04-22 2:58 am
✔ 最佳答案
i) -3 and 6-3+6=3, (-3)*6=18
ii) -1 and 5
-1+5=4, (-1)*5=-5
iii) -11 and -10
-11-10=-21, (-11)(-10)=110
iv) 7 and 9
7+9=16, 7*9=63
Just think of the multiples of the second number.
2013-04-23 18:35:14 補充：
think about* =.="
2013-04-24 8:27 am
收錄日期: 2021-04-25 20:13:52
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