
Need Help????
Problems say The sums and products of pairs of integers are given. find each paor of integers.
sum = 12, product = 36
sum = 12, product = 35
sum = 12, product = 32
sum = 12, product = 11
sum = 12, product = 0
please help... I cant do this :confused:

2 equations 2 unknowns
Well the long way would be to solve algebraicaly two equations with two unknowns like this:
x+y=12
x*y=36
solve the first eq for x:
x=12y
now sub it into eq 2
(12y)(y)=36
12yy^2=36
y^212y36=0
y^2+12y+36=0
(y+6)(y+6)=0
y=6
now sub into either eq and solve for x
The short way to do it is just by looking at it.
1. 6,6
2. 7,5
4. 8,4
5. 11,1
6. 12,0