<em>x³ + x²y - xy² - y³</em>
<em>Hi there !</em>
<em>(x − y)(x² + 2xy + y²) =</em>
<em>= x(x² + 2xy + y²) - y(x² + 2xy + y²)</em>
<em>= x³ + 2x²y + xy² - x²y - 2xy² - y³</em>
<em>= x³ + x²y - xy² - y³</em>
<em>Good luck !</em>
Answer:
-8 and -2
Step-by-step explanation:
f(x) basically means y and at the y value 0 the x values are -8 and -2 (also known as the roots of the function)
65 miles
There are two simultaneous equations . Remeber that v=d/t, 1hour = 60 minutes.
1. 40 = (d+15)/(t+0.5)
2. 50 = d/t
solving: d= 25 miles and t=0.5 hours.
The distance traveled is:
D=d+d+15
D=65 miles
Answer: 1st option
I've attached the solution
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