Rewrite the function by completing the square. f(x)=x^2+14x+8

f(x)=(x+__)^2=__

And solving we got:

And we can reorder the terms we got:

And that would be the equivalent expression for the problem

Step-by-step explanation:

For this case we have the following function given:

And we can complete the square adding the middle of 14 squared and subtracted before like this:

And solving we got:

And we can reorder the terms we got:

And that would be the equivalent expression for the problem

b.) 160 miles on a 5 gallons car

step-by-step explanation:

240/10=24 miles/gallon

160/5=32 miles/gallon

30/1=30 miles/gallon

168/6= 28 miles/gallon

32 miles/gallon is the most amount, so this is the best.

25

step-by-step explanation: