The product of (a b)(a b) is a2 b2. Sometimes Always Never [Solved]

Whenever a and b commute.
Note how Lake above had to write it explicitly that ab = ba

its known as the
difference of squares

Whenever a and b commute.
Note how Lake above had to write it explicitly that ab = ba

But ab = ba, so the terms in the middle are the same with opposite signs. They cancel leaving a b.

But ab = ba, so the terms in the middle are the same with opposite signs. They cancel leaving a b.

Source(s): write your questions more clearly

Whenever a and b commute.
Note how Lake above had to write it explicitly that ab = ba

If so, then the answer is always. You can find this by distributing.

its known as the
difference of squares

need to recognize the parts
they pop up EVERYWHERE!!!

Source(s): write your questions more clearly

Source(s): write your questions more clearly

This post is last updated on hrtanswers.com at Date : 1st of September – 2022

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