How To Find Zeros Of A Function?

Set the function equal to zero: (f(x)=0)

Solve the resulting equation for (x)

Factor the function if possible

Use the zero product property if the function is factored

Simplify the equation before solving

Apply algebraic methods such as:

Completing the square

Quadratic formula

Square root property

Rational root theorem

Graph the function and find where it crosses or touches the x-axis

Use a table of values if needed

Check solutions by substituting them back into the original function

Exclude any extraneous solutions if they appear

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