Idon’t know what to do and the steps for this

to simplify it, we need to combine like terms. 8 and 15 are like, and 5x and 2x are like. so we rearrange it: 8+15-5x-2x

and now we simplify: 23-7x

First of all we will collect like terms by saying 8+15-5x-2x

Threfore the final answer is 22-7x

x = ± 6i

step-by-step explanation:

x^2 = -36

take the square root of each side

sqrt(x^2) = sqrt(-36)

we know sqrt(ab) = sqrt(a) sqrt(b)

x = ±sqrt(36) sqrt(-1)

we know that sqrt (-1) = i

x = ± 6i

faster, im not sure why but i know it is faster