Question

Find the product:

(x + 1) (x + 5)

Answer 1

Given: (x + 1) (x + 5)

Step-wise calculation:

Use the distributive property also called FOIL for binomials:

(x + 1)(x + 5) = x × x + x × 5 + 1 × x + 1 × 5

Calculate each term:

x × x = x² 

x × 5 = 5x 

1 × x = x

1 × 5 = 5

Add all the terms together:

x² + 5x + x + 5 = x² + 6x + 5