Question

Find the product of (4x +1)(4x -1)

Answer 1

16x² - 1

Explanation:

(4x + 1)(4x - 1)

each term in the second factor is multiplied by each term in the first factor , that is

4x(4x - 1) + 1(4x - 1) ← distribute parenthesis

= 16x² - 4x + 4x - 1 ← collect like terms

= 16x² - 1

Answer 2

(4x +1)(4x -1)​

Apply the distributive property:

4x (4x ) + 4x (-1) + 1 (4x) + 1 (-1)

16x^2 -4x + 4x -1

Combine like terms:

16x^2-1