25 is the answer hope it helped
Answer:
(7w + 9x)(7w - 9x)
Step-by-step explanation:
Given expression;
49w² - 81x²
Now to solve the problem;
49w² - 81x² = 7²w² - 9²x²
Using differences of two squares;
x² - y² = (x + y)(x - y)
So;
7²w² - 9²x² = (7w + 9x)(7w - 9x)
% increase = (final - initial) / initial * 100
= (131 - 92) / 92 * 100
= 39/92 * 100
= 3900/92
= 42.39%
In short, Your Answer would be 42.39%
Hope this helps!