Answer :
x=0
i simply just did
x+7=x^2+2x+7
-7 -7
x=x^2+2x
then i just isolated the variable. the only number that could fit was 0
i simply just did
x+7=x^2+2x+7
-7 -7
x=x^2+2x
then i just isolated the variable. the only number that could fit was 0