Algebra-1

Given the expression 9x² + 20x + 4, we have:
a = 9
b = 20
c = 4

We need to find two numbers m and n such that their product is ac (9 * 4 = 36) and their sum is b (20).

The numbers that satisfy these conditions are 2 and 18:

m = 2
n = 18

Now, let's rewrite the middle term (20x) using these values:
20x = 2x + 18x

Now we ...