Answer:
Step-by-step explanation:
(x-1)(x+1)
x×x = x²
-1×+1 = -1 (negative times positive will always be negative)
= x² - 1
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Answer:
X² - 1
Step-by-step explanation:
(x-1)(x+1)
x×x = x²
-1×+1 = -1 (negative times positive will always be negative)
= x² - 1