What are the roots of the quadratic equation below?
x2 + 2x= -5

No real root.

Complex roots:

Step-by-step explanation:

There are no two integers whose product is 5 and whose sum is 2, so this trinomial is not factorable. We can use the quadratic formula.

Since we have a square root of a negative number, there are no real roots. If you have learned complex numbers, then we can continue.

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.

8

step-by-step explanation:

just put √(2) * √(32) into a calculator. that will make the answer be 8.