Posted by sarah on Tuesday, October 14, 2008 at 12:39am.
Write the equations and solve them.
Let the "some number" be x. Let his mother's age be y.
(17 + x)^2 = y^2
y^2 = 2209
Hint: the square root of 2209 is 47. So you can eliminate y as an unkown.
You will be left with a quadratic equation to solve. Use the usual methods.
pls..help me
about this common monomial factor.
how to solve it,and how can i use the short method.
thank you. :)
Please post your question separately using "Post a New Question" and explai: * what monomial factor you are talking about,
* why it is "common" and
* what the "it" is that you are trying to solve.
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