Homework Help: mathematics

Posted by jessica on Wednesday, August 6, 2008 at 8:52am.

the difference between two positive numvers is 2 and the difference between their squares is 40.
taking x to be the smaller of the two numbers, form an equation in x and solve it.

thank you in advance!

mathematics - Reiny, Wednesday, August 6, 2008 at 9:05am
Just translate the English into "math"

<the difference between two positive numvers is 2 > --->
smaller number is x
larger number is x+2

<the difference between their squares is 40> ---->

(x+2)^2 - x^2 = 40

now solve that quadratic.
- mathematics - jessica, Wednesday, August 6, 2008 at 9:07am
  x=9! thankyou for your help!
- mathematics - Soha, Wednesday, August 6, 2008 at 3:46pm
  x=9

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