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Difference of squares identity

coder super answered on October 27, 2022 Popularity 5/10 Helpfulness 10/10

answer Difference of squares identity

Difference of squares identity

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Statement: a²-b² = (a+b)(a-b)
Proof:
(a+b)(a-b)
= a²+ab-ab-b²
= a²-b²

You can plot negative values of a or b.
Example:
(-3)²-7² = [(-3)+(7)][(-3)-7] = (4)(-10) = -40.
Note that a² + b² = (a+ib)(a-ib), where i is the imaginary number.

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Contributed on Oct 27 2022

coder super

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