Saved Bookmarks
| 1. |
Find a pair of integer whose product is -50 and whose difference is 15 |
|
Answer» Answer: 5,-10 Step-by-step explanation: x.y=-50....(1) x-y=15....(2)
x.(x-15)=-50 →x²-15x+50=0 →x²-5x-10x+50=0 →x(x-5)+10(x-5)=0 →(x+10)(x-5)=0 →x= -10,5 if x= -10 ,y= 5 |
|