x² + x – 132

Now, first we have to find out the numbers whose-

Sum = 1 and

Product = - 132

The numbers are 12 and 11,

So,

x² + x – 132 = x² + 12x – 11x – 132

= x(x + 12) – 11(x + 12)

= (x + 12)(x – 11)