SOLUTION: i know i asked for one help but i need one more please? factor completely? x^2-16

Question 81363: i know i asked for one help but i need one more please?
factor completely?
x^2-16
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
ERROR Algebra::Solver::Engine::invoke_solver_noengine: solver not defined for name 'quadratic_factoring'.

Error occurred executing solver 'quadratic_factoring' .

You can also use the difference of squares by noticing that is in the form where a=x and b=4 so following the difference of squares we get

Difference of squares

Plug in a=x and b=4

which is what we got orginally
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