Demarkus says that a store overcharged him on the price of the video game he bought. he thought that the price was marked 1/4 of the original price, but was really 1/4 off the original price of the game was $48, what is the difference between the price that demarkus thought he should pay and the price that the store charged him?

x = ±sqrt(10)

step-by-step explanation:

5 - 2x² = -15

subtract 5 from each side

5-5 - 2x² = -15-5

-2x^2   = -20

divide by -2 on each side

-2x^2   /-2= -20/-2

x^2 =10

take the square root on each side

sqrt(x^2 )=±sqrt(10)

x = ±sqrt(10)

check:

5 - 2x² = -15

+sqrt(10)

5 - 2(sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15

-sqrt(10)

5 - 2(-sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15

idk idk idk idk idk

step-by-step explanation:

m=-16

step-by-step explanation: