But (-2x)^4 = (-2x)(-2x)(-2x)(-2x). They are not the same at all.

-2x^4 is just -2 times x to 4th power. It just has one negative. (-2x)^4 is 4 negatives! (-2x)^4 may seem confusing, but it’s just multiplying -2x four times, for example (-2x)(-2x)(-2x)(-2x).

This is one of the “most missed” problems in Algebra. Be careful!

This is an important post because the author, Norman, explains one of the most-missed concepts in Algebra.

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