Question

I need to factor 5n^2-16

Answer 1

(
`√(5)` n - 4)(
`√(5)` n + 4)

Explanation:

Using the factorising method, difference of 2 squares

a² - b² = (a - b)(a + b) , then

5n² - 16

= (
`√(5)` n )² - 4²

= (
`√(5)` n - 4)(
`√(5)` n + 4)