₦airaland Forum

Write a program that will use the method of completing the square to solve a quadratic equation.
SAMPLE INPUT:
2x² + 5x - 3 = 0
SAMPLE OUTPUT:
x = 1/2 or x = - 3
HINTS
1)Only the addition and substraction operator are allowed in the input equation.
2)Only three co-efficients are used in the equation.
RULES
1)Your code must be robust and work with any input.
2)Run your code on www.ideone.com.
3)Fastest and shortest code wins.
4)It should be able to run on a poor cpu. Good luck

x=(-b+math.sqrt(b**2-4*a*c))/(2*a)

or

x=(-b-math.sqrt(pow(b,2)-4*a*c))/(2*a)

all others are simple.

note the operator diff after each -b

Python. Same applies to Java.

ooman: x=(-b+math.sqrt(b**2-4*a*c))/(2*a)

or

x=(-b-math.sqrt(pow(b,2)-4*a*c))/(2*a)

all others are simple.

note the operator diff after each -b

Python. Same applies to Java.

hello ?. Quadratic formula and completing the square are two different things. Though quadratic formula was derived from completing the square.

elvis10ten: hello ?. Quadratic formula and completing the square are two different things. Though quadratic formula was derived from completing the square.

so your point?

ooman: so your point?

Please read the question before posting, it says using completing the square method.