Factorize the expression $$4x^2$$ + 16.

• 4(x + 4)(x - 4)
• 4(x - 4)(x - 4)
• 4(x + 2)(x -2)
• 4(x - 4)(x + 4)

Your New Favorite Thing

Only 10% of Americans Get a Perfect Score on This English Grammar Test

Will To Win Chiswick

The Even Lesser-Known Characters Quiz

A Quick Northern Lights Trivia!

These Are All The Most Shocking Looks From The Oscars Over The Years, And Now It's Your Turn To Choose The Most Iconic Ones

The Cedric Diggory Challenge Quiz