SOLUTION: what do I need to do to solve problem written find two numbers whose product is 7 and whose sum is 8

Question 470957: what do I need to do to solve problem written find two numbers whose product is 7 and whose sum is 8
Found 2 solutions by Tatiana_Stebko, lwsshak3:
Answer by Tatiana_Stebko(1539) (Show Source): You can put this solution on YOUR website!
Let and are two numbers

from the second equation

multiply by (-1)

if , then => (7,1)
if , then => (1,7)
Answer these numbers are 1 and 7
Answer by lwsshak3(11628) (Show Source): You can put this solution on YOUR website!
what do I need to do to solve problem written find two numbers whose product is 7 and whose sum is 8
**
let x= one of the numbers
let y= other number
..
x+y=8
y=8-x
x*y=7
x(8-x)=7
8x-x^2=7
x^2-8x+7=0
(x-7)(x-1)=0
x=7
and
x=1
ans:
The numbers are 1 and 7
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