A financial instrument pays 8% simple interest (based on the purchase value) and matures after 3 years. The instrument can be purchased at any price. An investor purchases the instrument for P dollars, and calculated that the total value of the investment (i. e. P plus interest earned) will be $2,000 at maturity. Calculate P.
Round your answer to the nearest cent.
Do NOT round until you have calculated your final answer.

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

good luck on ur quiz test or homework. have a good day : )

i believe your answer is a