We use cookies to personalise content and advertisements and to analyse access to our website. Furthermore, our partners for online advertising receive pseudonymised information about your use of our website. cookie policy and privacy policy.
 
+0  
 
0
35
2
avatar

The product of two positive integers is equal to twice their sum. This product is also equal to six times the difference between the two integers. What is the sum of these two integers?

 Nov 21, 2019

Best Answer 

 #2
avatar
+1

a b = 2 (a + b)...............(1)
a b = 6 (a - b)................(2)

 

2[a +b] =6[a - b]
2a +2b =6a - 6b
a = 2b   Sub into equation (1)
2b^2 - 6b = 
2b(b - 3) = 0
b(b - 3) =0
b = 3    and     a=6

 Nov 21, 2019
edited by Guest  Nov 21, 2019
 #1
avatar
0

x+y=9

 Nov 21, 2019
 #2
avatar
+1
Best Answer

a b = 2 (a + b)...............(1)
a b = 6 (a - b)................(2)

 

2[a +b] =6[a - b]
2a +2b =6a - 6b
a = 2b   Sub into equation (1)
2b^2 - 6b = 
2b(b - 3) = 0
b(b - 3) =0
b = 3    and     a=6

Guest Nov 21, 2019
edited by Guest  Nov 21, 2019

37 Online Users

avatar
avatar