Ответ:

6. 1. p = 22 , s = 20

   2. x = -5, y = 132

Объяснение:

6.

1)

[tex]a = 5\\b = 8\\c = \sqrt{a*a + b * b} = \sqrt{5*5+8*8} =\sqrt{89} = 9\\p = a + b + c = 5+8+9=22\\s=\frac{a*b}{2} =\frac{5*8}{2} =20\\[/tex]

2)

[tex]x = -5\\y = x^{3} -2*x-3=(-5)^{3} -2*(-5)-3=-118[/tex]