You first simplify the expression using PEMDAS
-2x^3-10x^2+2x^3-10x^2+x
then combine like terms,
(-2x^3+2x^3), (-10x^2-10x^2), x
cancels out^
so the answer would be -20x^2+x
Answer: 28 in.
Step-by-step explanation:
its simple
20 miles/2 hours = 10 miles/1 hour, therefore her average speed is 10mph
5x+ (5)15
or
5(x+15)
I hope this helps
Answer:
B
Step-by-step explanation:
