The light bulb is important because it helps you see in the dark.
The light bulb is a round object that produces light from energy.
People can't live without the light bulb because it helps you out a lot such as see in the dark like when you do homework at night.
It could help businesses profit because many will want to buy it cause they can be cheap but many will sell and it could help you a lot!
One advantage of Binary Search Algorithm:
Compared to Linear search it is much faster because linear search starts its searching right from the first value but binary searches for something by splitting the array in two again and again and again.
One disadvantage of Binary Search Algorithm:
Have to be sorted, unlike linear search that doesn't have to be.
Program p1;
var a,b,c,d : integer; {i presume you give integer numbers for the values of a, b, c }
x1, x2 : real;
begin
write('a='); readln(a);
write('b='); readln(b);
write('c=');readln(c);
d:=b*b - 4*a*c
if a=0 then x1=x2= - c/b
else
if d>0 then begin
x1:=(-b+sqrt(d)) / (2*a);
x2:=(-b - sqrt(d))/(2*a);
end;
else if d=0 then x1=x2= - b /(2*a)
else write ("no specific solution because d<0");
writeln('x1=', x1);
writeln('x2=',x2);
readln;
end.