SOLUTION: If the product of two consecutive even intergers is 34 larger than their sum, then what are the intergers?

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Question 148007: If the product of two consecutive even intergers is 34 larger than their sum, then what are the intergers?
Found 2 solutions by jim_thompson5910, ankor@dixie-net.com:
Answer by jim_thompson5910(35256)   (Show Source): You can put this solution on YOUR website!
Remember, consecutive even integers follow the pattern: , , , etc.


So if the "product of two consecutive even intergers is 34 larger than their sum", then we have the equation

Start with the given equation.


Distribute.


Combine like terms


Subtract from both sides. Subtract from both sides.


Combine like terms.


Notice we have a quadratic equation in the form of where , , and


Let's use the quadratic formula to solve for x


Start with the quadratic formula


Plug in , , and


Square to get .


Multiply to get


Rewrite as


Add to to get


Multiply and to get .


Take the square root of to get .


or Break up the expression.


or Combine like terms.


or Simplify.




So the first number is either or

And the second number is either or

This means that the two numbers are 6 and 8

OR

the two numbers are -6 and -4


Answer by ankor@dixie-net.com(22740)   (Show Source): You can put this solution on YOUR website!
If the product of two consecutive even integers is 34 larger than their sum, then what are the integers?
;
x(x+2) = x + (x+2) + 34
:
x^2 + 2x = 2x + 36
:
x^2 + 2x - 2x - 36 = 0
:
x^2 - 36 = 0
Factors to:
(x-6)(x+6) = 0
:
x = +6
and
x = -6
:
integers are; 6,8 and -6,-4

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