(2x+1)(16x^4-8x^3+4x^2-2x+1)
(2x+1)(16x⁴-8x³+4x²-2x+1)= =32x^5-16x⁴+8x³-4x²+2x+ +16x⁴-8x³+4x²-2x+1=32x^5+ +1