Question 1106629
{{{system(x+y=38,y-4=(x-4)^2)}}}


{{{38-x-4=x^2-8x+16}}}
{{{-x+34=x^2-8x+16}}}
{{{x^2-7x+16-34=0}}}
{{{x^2-7x-18=0}}}
{{{(x-9)(x+2)=0}}}
{{{highlight(x=9)}}}--------younger sister


{{{highlight(y=29)}}}-------older sister


-

recheck
{{{29-4=(9-4)^2}}}
{{{25=5^2}}}
{{{ok}}}