Answer:
x^2 + 4x
Step-by-step explanation:
To solve factoring problems like these, I like to use the FOIL method, where each step represents a letter in the acronym.
First, multiply the first terms (the F in FOIL): x * x = x^2
Then, multiply the outer terms: x * 0 = 0
Next, multiply the inner terms: 4 * x = 4x
Finally, multiply the last terms: 4 * 0 = 0
Now, add them all together.
x^2 + 0 + 4x + 0 = x^2 + 4x
