Select all the correct locations on the table. Which expressions are equivalent to 5x√28^5 + 8x^3√7x, if x > 0?

Location 1: 5x√28x+32x^3√28x

Location 2: 13x^4√35x^6

Location 3: 20x^4√7x + 8x^4√7x

Location 4: 28x^4√7x

Location 5: 10x^3√7x + 8x^3√7x

Location 6: 18x^3√7x

answer for #1 is c

answer for #2 is d

can i get brainliest

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