125-(5-3x)(25+15x+9x²). при x=-4\3. срочно

Question

125-(5-3x)(25+15x+9x²). при x=-4\3. срочно

Answer 1

125 - (5^3 - (3x)^3) = 125 - ( 125 - 27x^3) = 125 - 125 + 27x^3 = 27x^3;

27 * (-4/3)^3 = 27 * (-64/27)=- 64

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