Factorise

a² - 144
Please factorise this

a² ÷a = a

144 ÷ 2= 12

(a - 12) (a + 12)

hey i’m new i won’t be answering any questions now bye peeps see you next time

7! = 7×6×5×4×3×2

3! = 3× 2

as 7! is multiple of 3! because 7! contains 3! that is 3× 2 as factor

so 7! /(3! ) = 7× 6× 5× 4

= 42 × 20

= 840

its b) 840✌✌✌

dhruv⭐