Question 303924
Given: {{{(81X^2 - 25)/(9X - 5)}}}
To start of you can unfoil the equation on top.
{{{81X^2 - 25 = (9X - 5)*(9X + 5)}}}
Then you can rewrite the given equation.
{{{((9X - 5)*(9X + 5))/(9X - 5)}}}
Cross out like terms.
{{{(cross((9X - 5))*(9X + 5))/cross((9X - 5))}}}
You are left with: {{{9X + 5}}}