Examples
x2+36x2+36
Step 1
Multiply the constant in the polynomial x2+36x2+36 by -i2−i2 where i2i2 is equal to -1−1.
x2-36i2x2−36i2
Step 2
Rewrite 36i236i2 as (6i)2(6i)2.
x2-(6i)2x2−(6i)2
Step 3
Since both terms are perfect squares, factor using the difference of squares formula, a2-i2=(a+i)(a-i)a2−i2=(a+i)(a−i) where a=xa=x and i=6ii=6i.
(x+6i)(x-(6i))(x+6i)(x−(6i))
Step 4
Multiply 66 by -1−1.
(x+6i)(x-6i)(x+6i)(x−6i)