1 5.2.3 Quiz: Completing the Square Question 3 of 10
Solve this quadratic equation by completing the square.
x2 + 4x = 15

step-by-step explanation:

we are given

since, we have to isolate x on anyone side

so, we can move all x terms on one side

subtract both sides by 2x

add both sides by 9

divide both sides by 4

we get

4a. is 3 miles every hour

4b. is 1/3 of an hour per mile

step-by-step explanation:

$5.41

step-by-step explanation:

$20 - $14.51 = $5.49.