If f(x) = x² - 1, then f (x - 1) =

Mathematics

1 answer:

Artist 52 [7]3 years ago

4 0

Step-by-step explanation:

f(x)=x²-1, f(x-1)=(x-1)²-1

=(x-1)(x-1)-1

=(x²-x-x+1)-1

=x²-2x+1-1

=x²-2x=0

x²=2x

x=2

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