Question

Complete the square to solve the following quadratic equation: x^2+2x−8=0 .
x=2, x=−4 x equals 2 , x equals negative 4 x=−2, x=4 x equals negative 2 , x equals 4 x=−10, x=8 x equals negative 10 , x equals 8 x=10, x=−8

Answer 1

Complete the square to solve the following quadratic equation: x^2−22x+1=15 .
x=−11+315−−√, −11−315−−√ x equals negative 11 plus 3 Start Root 15 End Root comma negative 11 minus 3 Start Root 15 End Root x=−11+14−−√, −11−14−−√ x equals negative 11 plus Start Root 14 End Root comma negative 11 minus Start Root 14 End Root x=11+14−−√, 11−14−−√ x equals 11 plus Start Root 14 End Root comma 11 minus Start Root 14 End Root x=11+315−−√, 11−315−−√

Answer 2

Using the quadratic formula, find the solution to x^2−6x−16=0.
x=8, x=−8 x equals 8 , x equals negative 8 x=8 x equals 8 x=8, x=−2 x equals 8 , x equals negative 2 x=−2

Answer 3

Which of the following is a solution to the quadratic equation 2x^2−5x=6 ? Assume that the solution has been rounded to the nearest hundredth, if applicable.
x=0.89 x equals 0.89 x=1.03 x equals 1.03 x=−0.89 x equals negative 0.89 x=−1.03 x equals negative 1.03

Answer 4

Pick on option

Answer 5

How many real solutions does the following quadratic equation have? 4x^2+x+3=0
two real solutions two real solutions one real solution one real solution no real solutions no real solutions three real solutions