The highlighted variables a = 6 , b = 2, c=6 , d =2 , e=6 , f =6 , g =1
<h3>What is an Expression ?</h3>
An expression is a mathematical statement which consists of variables , constants and mathematical operators.
![\rm \dfrac{2}{x^2-36}-\dfrac{1}{x^2+36}\\= \dfrac{2}{(x+6)(x-6)}-\dfrac{1}{x(x+a)}\\=\dfrac{bx}{x(x+6)(x-6)}-\dfrac{x-c}{x(x+6)(x-6)}\\\\=\dfrac{dx-x+e}{x(x+6)(x-6)}\\\\= \dfrac{x+f}{x(x+6)(x-6)}\\\\=\dfrac{g}{x(x-6)}](https://tex.z-dn.net/?f=%5Crm%20%5Cdfrac%7B2%7D%7Bx%5E2-36%7D-%5Cdfrac%7B1%7D%7Bx%5E2%2B36%7D%5C%5C%3D%20%5Cdfrac%7B2%7D%7B%28x%2B6%29%28x-6%29%7D-%5Cdfrac%7B1%7D%7Bx%28x%2Ba%29%7D%5C%5C%3D%5Cdfrac%7Bbx%7D%7Bx%28x%2B6%29%28x-6%29%7D-%5Cdfrac%7Bx-c%7D%7Bx%28x%2B6%29%28x-6%29%7D%5C%5C%5C%5C%3D%5Cdfrac%7Bdx-x%2Be%7D%7Bx%28x%2B6%29%28x-6%29%7D%5C%5C%5C%5C%3D%20%5Cdfrac%7Bx%2Bf%7D%7Bx%28x%2B6%29%28x-6%29%7D%5C%5C%5C%5C%3D%5Cdfrac%7Bg%7D%7Bx%28x-6%29%7D)
In the given expression
a = 6 , b = 2, c=6 , d =2 , e=6 , f =6 , g =1
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