Question

Factorise (x+1)(x-1)-5/4​

Answer 1

solution

x² - x² - 5 / 4

x² - 1 - 5 / 4

x² - 1 - 5 / 4

x² - 4/4 - 5/4

x² + - 4 - 4 / 5

x² - 9 / 4

hope helpful for you friend