# SOLUTION: How to write a quadratic equation.

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 Algebra: Linear Equations, Graphs, Slope Solvers Lessons Answers archive Quiz In Depth

 Click here to see ALL problems on Linear-equations Question 243022: How to write a quadratic equation.Answer by nyc_function(2733)   (Show Source): You can put this solution on YOUR website!A quadratic equation is of the form ax^2 + bx + c = 0 where a CANNOT = 0. You can solve a quadratic equation by factoring if, after writing it in standard form, the quadratic expression factors. Step 1: Simplify each side if needed. Step 2: Write in standard form, ax^2 + bx + c = 0, if needed. Step 3: Factor. Step 4: Use the Zero-Product Principle. Step 5: Solve for the linear equation(s) set up in step 4. Here is what it looks like: x^2 + 3x - 10 = 0.