Round 32,518 to the nearest hundreds

If I’m correct this is supposed to be a decimal ( here we use the dot not the comma ) but if so then 32.52 a good way to remember is 5 or more let it sore (meaning round up) four or less let it rest (meaning it stays the same)

Distribute sum groups

2x^2(3x^2 + 9x + 3) - 5x(3x^2 + 9x + 3)

Distribute

6x^4 + 18x^3 + 6x^2 - 5x(3x^2 + 9x + 3)

Distribute

6x^4 + 18x^3 + 6x^2 - (15x^3 + 45x^2 + 15x)

Simplify brackets

6x^4 + 18x^3 + 6x^2 - 15x^3 - 45x^2 - 15x

Collect like terms

6x^4 + (18x^3 - 15x^3) + (6x^2 - 45x^2 - 45x^2) - 15x

Simplify

A) 6x^4 + 3x^3 - 39x^2 - 15x