Question

What are the solutions to f(x)=x^2-1?

Answer 1

Answer:

1 and -1

Step-by-step explanation:

Factoringfind a number set that equals zero and when multiplyed, becomes -1.

1 and -1 multiply to -1 and equal 0,

so x^2-1 turns into (x+1)(x-1)

solve for both x+1=0 and x-1=0

x+1=0

x=-1

x-1=0

x=1