Question

In factoring by grouping, what would you have for step 3 for the following?

Answer 1

Answer:

Factor out the x+5

 (x+5)(x^2+4)

Step-by-step explanation:

Step 1: x^3 +5x^2 +4x+20

Step 2: x^2 (x+5)+4(x+5)

Step 3:   Factor out the x+5

 (x+5)(x^2+4)

Answer 2

Answer:

Step 3: (x^2 + 4)(x + 5)

Step-by-step explanation:

Step 1: x^3 +5x^2 + 4x+20

Step 2: x^2 (x+5) + 4(x+5)

Step 3: (x^2 + 4)(x + 5)