(3x-4)^3+(3x-2)^3-27x^3 при x=0.5

Question

(3x-4)^3+(3x-2)^3-27x^3 при x=0.5

Answer 1

(1,5-4)³+(1,5-2)³-27(0,5)³=(-2,5)³+(-0,5)³-27(0,5)³=(-5*0,5)³+(-0,5)³-27(0,5)³=0,5³((-5)³+(-1)³-27)=0,125(-125-1-27)=0,125*(-153)=-19,125