What is the remainder of X^3-1 when divided by (x+2)?

Imma be honest i don’t necessarily know what this question means, BUT i found the solution to the expression.

x^3-1 / x+2 = x^4 + 2x - 1 / x

i hope this is what you meant by the remainder.

You must find the surface of the block therefore 98187 dived by 5628 = 583m squared