[tex] (a-b)(a+b)[/tex]
Using FOIL method:
[tex] = a^2 + ab - ab - b^2 [/tex]
[tex] = \boxed{a^2 - b^2} [/tex]
Answer:
(a-b)(a+b)=
use a FOIL METHOD
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a²+ab-ba-b²
a²-b² answer
