the answer to the equation is x=15
You can exploit the difference-of-squares identity,
<em>a</em>² - <em>b</em>² = (<em>a</em> - <em>b</em>) (<em>a</em> + <em>b</em>)
Then
101.5² - 100.5² = (101.5 - 100.5) * (101.5 + 100.5)
101.5² - 100.5² = 1 * 202
101.5² - 100.5² = 202
Ittttts obviously be greater than 3/5
5 * 3/5 to get 3!!
What comes next is 0.75
The pattern rule is you add 0.15
