[tex]a) \\wysokosc = x\\\\V = a * b * c\\V = a*a*x\\8a^2 + 4a^3 = a^2*x\\\frac{a^2(8+4a)}{a^2} = x\\8+4a = x\\wysokosc = 8 + 4a\\\\\\b)\\Pb_1 = H*a \\Pb_1 = (8+4a)*a\\Pb_1 = 8a + 4a^2\\\\\\c)\\Pc = 2Pp + Pb\\\\Pp = a^2\\\\Pb = 4*Pb_1\\Pb = 4*(8a+4a^2)\\Pb = 32a + 16a^2\\\\Pc = 2a^2 + 32a + 16a^2\\Pc = 32a + 18a^2[/tex]
