I just started programming in c++ and i tried to explore and do programs on my own... So i wanted to do a program that would help me in my daily school work ... a program to solve quadratic equations.. I wrote the code correctly but errors are still detected and i have no idea why.. almost gave up and banged my head on the wall .. so i would really appreciate help.. This is the code so far..
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#include <cmath>
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#include <iostream>
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using namespace std;
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int main()
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{
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double x;
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double y;
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double z;
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cout<<"Please enter the coeff of (x square):";
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cin>> x;
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cout<<"Please enter the coeff of (x):";
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cin>> y;
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cout<<"Please enter the number without the unknown (x):";
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cin>> z;
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double b = (((y * y) - (4 * x * z)));
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double a = ((-y + (sqrt (b)) / (2 * x)));
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double c = ((-y - (sqrt (b)) / (2 * x)));
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cout<<"X = "<< a << "or" << c;
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cin.ignore();
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cin.get();
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}
The answers i get arnt even close to the actual answers...
Please tell me what is wrong.. PLEASE PLEASE PLEASE
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This should help in understanding what i am trying to do.....
This program is supposed to solve equations like (3x^2 * -7x + 2)
so.. Using the general formula to solve this equation we take the coeff of x^2 to be "x", coeff of x to be "y" and coeff of number without unknown x to be "z".
Therefore x = 3
y = -7
z = 2
The equation to find x = ((-y) + sqrt((y^2) - (4*x*z))) / 2*x)
so... resulting to.. x = (7 + (sqrt (49 - 24)) / 6
and.. x = (7 + 5)/6
x = 2 //
As you can see.. in my code.. double b should = 25...
Any questions please ask.. i need help to solve this program.. I just really want to finish this program so please help
