To solve the equation by factoring, we first rearrange it into standard form:
Step 1: Substitution
Let's use a substitution to simplify the expression. Let:
Then, the equation becomes:
Step 2: Factor the Quadratic
Now, we need to factor the quadratic equation . We are looking for two numbers that multiply to -64 and add to -12. The numbers -16 and 4 satisfy this condition:
Step 3: Solve for
Setting each factor to zero gives us:
Step 4: Substitute Back for