Раскройте скобки 5х³ - 5(х+2)(х²-2х+4)

Question

Раскройте скобки 5х³ - 5(х+2)(х²-2х+4)

Answer 1

5х^3-5(х^3-2^3)=5х^3-5х^3-10х^3=-10х^3

Answer 2

5x³-5(x+2)(x²-2x+4)=5x³-5(x³-3x+4x+2x²-4x+8)=5x³-5(x³-3x+2x²)=5x³-5x³+15x-10x²=-10x²+15x