Question

Find 8! + 4!
By using method

Answer 1

$\boxed{\rm\blue{☯Answer}}$

Here we to do addition,

The given numbers are : 8 and 4

$\boxed{\rm\red{➸8 + 4 = 12}}$

_____________

Verify:

$\leadsto\sf{12 - 4 = 8}$

➸Hence Proved!

Answer 2

Step-by-step explanation:

Given:-

8! + 4!

To find:-

Find the value of 8!+4!

Solution:-

Given that :

8!+4!

we know that

n! = n(n-1)(n-2)(n-3)------3.2.1

8! = 8×7×6×5×4×3×2×1= 40320

4! = 4×3×2×1 = 24

now , 8!+ 4! =

40320+24

=40344

(or)

Given 8!+4!

=>8×7×6×5×4! + 4!

=>(8×7×6×5+1)×4!

=>(1680+1)×4!

=>1681×4!

=>1681×24

=>40344

Answer:-

The value of 8! + 4! is 40,344

Used formula:-

• n! = n(n-1)(n-2)(n-3)....(3)(2)(1)