This lesson teaches how to solve an equation that is quadratic in form by substituting a variable for the middle term of the equation. By factoring the resulting quadratic equation, it is possible to solve for the variable and then substitute the value obtained back into the original equation. The highest degree of the polynomial determines how many solutions there might be. It is essential to check all the solutions in the original equation to verify their validity. Different methods can be used to solve these types of equations, but the use of substitution is one of the most common.
Example of solving an Equation that is Quadratic in form.
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