Which answer shows 5x5 correctly in exponential form select the correct answer is it a. 5x or b. 2/5 c. 5/2 d. 2/5

-4

step-by-step explanation:

(-4+8)=-(4-8)=-8+4=-4

im pretty sure it would be 5 am, hope that , and give brainliest and guys if this is right then press the button and give 5 stars

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

answer: this is not a question

step-by-step explanation: this is a answer