How can I use * instead of pow?

Question

When I run the commented part instead of the other part I get an error "expected ) before ; token ; "
float ds = (sqrt(pow((p.getX() - getX()),2) + pow((p.getY()- getY()),2) + pow((p.getZ() - getZ()),2)));
/*
float ds=sqrt
(((p.getX()-getX())*(p.getX()-getX())+
((p.getY()-getY())*(p.getY()-getY())+
((p.getZ()-getZ())*(p.getZ()-getZ()));
*/

Answer 1

Remove the first parenthesis '(' from each line

They are mismatched and you don't need them

Answer 2

To not confuse, simplifying to understand :

float x, y, z;

x = p.getX()-getX();

y = p.getY()-getY();

z = p.getZ()-getZ();

float ds = sqrt( pow(x,2) + pow(y,2) + pow(z,2) );

/*
float ds=sqrt( (x*x)+(y*y)+(z*z) );
*/