a^3+b^3=(a+b)(a^2-ab+b^2) 0.064=0.4^3 27x^6=(3x^2)^3
0.4^3+(3x^2)^3=(0.4+3x^2)(0.16-0.4*3x^2+9x^4)=(0.4+3x^2)(0.16-1.2x^+9x^4)
a^3+b^3=(a+b)(a^2-ab+b^2) 0.064=0.4^3 27x^6=(3x^2)^3
0.4^3+(3x^2)^3=(0.4+3x^2)(0.16-0.4*3x^2+9x^4)=(0.4+3x^2)(0.16-1.2x^+9x^4)