How do you complete the square to solve #2x² + 3x -5=0#?
You follow a series of steps to complete the square.
Step 1. Write your equation in standard form.
Step 2. Move the constant to the right hand side of the equation.
Step 3. Divide both sides of the equation by the coefficient of
Step 4. Square the coefficient of x and divide by 4.
Step 5. Add the result to each side.
Step 6. Take the square root of each side.
Check: Substitute the values of
To solve this type of quadratic equations, use the Shortcut. It can save you a lot of work and time.
(a + b + c = 0) -> 2 real roots: 1 and