Math Problem Statement

if a^2-b^2=2ab, what is the value of (a+b)/(a-b)

Solution

We are given the equation a2b2=2aba^2 - b^2 = 2ab, and we want to find the value of a+bab\frac{a+b}{a-b}.

Step 1: Use the difference of squares identity

The left-hand side of the equation is a difference of squares, which can be factored as: a2b2=(a+b)(ab)a^2 - b^2 = (a + b)(a - b) So, the equation becomes: (a+b)(ab)=2ab(a + b)(a - b) = 2ab

Step 2: Solve for a+bab\frac{a+b}{a-b}

Now divide both sides of the equation by (ab)(a - b) (assuming aba \neq b) to isolate a+ba + b: a+b=2ababa + b = \frac{2ab}{a - b} Finally, divide both sides by aba - b to find a+bab\frac{a+b}{a-b}: a+bab=2ab(ab)2\frac{a+b}{a-b} = \frac{2ab}{(a-b)^2}

Thus, the value of a+bab\frac{a+b}{a-b} is 2ab(ab)2\frac{2ab}{(a-b)^2}.

Would you like further details or clarifications?

Here are some related questions to explore:

  1. How does the solution change if a=ba = b?
  2. Can this problem be solved geometrically or graphically?
  3. How would this equation change if a2b2=3aba^2 - b^2 = 3ab instead?
  4. What would happen if b=0b = 0 in this equation?
  5. Can we express a+ba + b in terms of other variables from this equation?

Tip: When dealing with factorizations like difference of squares, always check if the equation can be simplified further!

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Math Problem Analysis

Mathematical Concepts

Algebra
Difference of Squares
Factoring

Formulas

a^2 - b^2 = (a + b)(a - b)
(a + b)/(a - b) = 2ab / (a - b)^2

Theorems

Difference of Squares Identity

Suitable Grade Level

Grades 9-11