Question

I have been letting this one sit for a while. I dont need it anymore but I would just like some closure. What am i doing wrong?

CLS
PRINT "Quadratic Formula Calculator"
INPUT "What is the value of 'b'"; b1
INPUT "What is the value of 'a'"; a1
INPUT "What is the value of 'c'"; c1
CLS
PRINT "b="; b1
PRINT "a="; a1
PRINT "c="; c1

midquad = (b1 ^ 2 - 4 * a1) * c1
abodiv =sqrt midquad - b1
xlow = abodiv / (2 * a1)

midquad = (b1 ^ 2 - 4 * a1) * c1
abodiv = sqrt midquad + b1
xhigh = abodiv / (2 * a1)


PRINT "The two points where your line crosses the x axis are("; xlow; ",0) and ("; xhigh; ",0)

Answer 1

The b should always be negative, it's the square root that changes signs. It is:

\[-b \pm \sqrt{b^2 - 4ac} \over 2a\]

Above, you change the sign of b, rather than the sign of the square root.

Answer 2

If you want to know what you're doing wrong the best way to find out is to ask a woman. Either your mother, sister, wife, or girlfriend. They can tell you pretty quickly.