Question

помогите пожалуйста!!!!! даю 60 балов​

Answer 1

$\displaystyle\bf\\1)\\\\f(x)=-x^{2} -1\\\\f(0)=-0^{2} -1=-1\\\\f(-1)=-(-1)^{2} -1=-1-1=-2\\\\f\Big(\frac{1}{2} \Big)=-\Big(\frac{1}{2} \Big)^{2} -1=-\frac{1}{4} -1=-1\frac{1}{4} =-1,25\\\\\\2)\\\\f(x)=-10\\\\-10=-x^{2} -1\\\\x^{2} =-1+10\\\\x^{2} =9\\\\x_{1,2} =\pm \sqrt{9}=\pm 3\\\\x_{1} =-3 \ \ \ ; \ \ \ x_{2} =3$