Чему равны значения выражений:
а) $x^2; -x^2; (-x)^2$ при x = −9; 9; −6; 6; −2; 2;
б) $x^3; -x^3; (-x)^3$ при x = −4; 4; −3; 3; −1; 1?
$x^2$ при:
x = −9: $(-9)^2 = 81$;
x = 9: $9^2 = 81$;
x = −6: $(-6)^2 = 36$;
x = 6: $6^2 = 36$;
x = −2: $(-2)^2 = 4$;
x = 2: $2^2 = 4$.
$-x^2$ при:
x = −9: $-(-9)^2 = -81$;
x = 9: $-9^2 = -81$;
x = −6: $-(-6)^2 = -36$;
x = 6: $-6^2 = -36$;
x = −2: $-(-2)^2 = -4$;
x = 2: $-2^2 = -4$.
$(-x)^2$ при:
x = −9: $(-(-9))^2 = 9^2 = 81$;
x = 9: $(-9)^2 = 81$;
x = −6: $(-(-6))^2 = 6^2 = 36$;
x = 6: $(-6)^2 = 36$;
x = −2: $(-(-2))^2 = 2^2 = 4$;
x = 2: $(-2)^2 = 4$.
$x^3$ при:
x = −4: $(-4)^3 = -64$;
x = 4: $4^3 = 64$;
x = −3: $(-3)^3 = -27$;
x = 3: $3^3 = 27$;
x = −1: $(-1)^3 = -1$;
x = 1: $1^3 = 1$.
$-x^3$ при:
x = −4: $-(-4)^3 = 64$;
x = 4: $-4^3 = -64$;
x = −3: $-(-3)^3 = 27$;
x = 3: $-3^3 = -27$;
x = −1: $-(-1)^3 = 1$;
x = 1: $-1^3 = -1$.
$(-x)^3$ при:
x = −4: $(-(-4))^3 = 4^3 = 64$;
x = 4: $(-4)^3 = -64$;
x = −3: $(-(-3))^3 = 3^3 = 27$;
x = 3: $(-3)^3 = -27$;
x = −1: $(-(-1))^3 = 1^3 = 1$;
x = 1: $(-1)^3 = -1$.
Пожауйста, оцените решение