Fill in the blanks to make a quadratic whose roots are $1$ and $-1.$ x^2 + ___ x + ___
Since the roots are 1 and – 1
then the factors are (x – 1) and (x + 1)
Multiply (x – 1) times (x + 1) to obtain x2 – 1
Therefore, fill the blank spaces with 0 and – 1
x2 + (0) x + (– 1)
.
+456 
