The expression 36x² - 121 is in the 'difference of two squares form' which is (a² - b²)
Factorising (a² - b²) gives (a+b)(a-b)
Factorising 36x² - 121 gives (6x+11)(6x-11)
Answer:
Alex earned about $60 more than Joaquin did.
Step-by-step explanation:
<span><span>The first step is to find the vertex. You do this by using the formula </span>
. <span>
Plug in b and a into the equation:
</span>

<span>
You get
</span>

<span>
So, it takes
5.5 seconds to get to
504 feet</span><span>
</span></span>