Question

(1²-x)+(2²-x)+(3³-x) egal 50

Answer 1

$( 1^{2} -x)+(2^{2} -x)+(3^{3}-x)=50 \\ 1-x+4-x+9-x=50 \\ x+4-x+9-x=50-1 \\ x+4-x+9-x=49 \\ x-x+9-x=49-4 \\ x-x+9-x=45 \\ 0+9-x=45 \\ 9-x=45 \\ x=45-9 \\ \boxed{x=36}.$