Question 958238

if the value of {{{c}}} is the value of {{{a^2 + b^2}}} when {{{a = 2}}} and {{{b =-2}}}, then we have  

{{{c=a^2 + b^2}}}

{{{c=2^2 + (-2)^2}}}

{{{c=4 + 4}}}

{{{c=8}}}

so, the value of {{{c^2-7}}} will be

{{{c^2-7}}}

{{{8^2-7}}}

{{{64-7}}}

{{{57}}}