Question

Evaluate 3! + 4!
can someone explain me the steps!

Answer 1

By order of operations, you'll want to evaluate the factorials first. So calculate 3! and 4! and then add the two numbers together

Answer 2

but the answers choices are 30, 144, 5040!:(((

Answer 3

Haha well, the right answer is there...

Let's try this:
3! = 3 x 2 x 1 = ?
4! = 4 x 3 x 2 x 1 OR 4! = 4 x 3! = ?

Answer 4

really :/ having a hard time! not understanding the steps...

Answer 5

Do you understand what the factorial operation (!) does?

Answer 6

no....:/

Answer 7

No problem :) Let me explain

So the exclamation point is called a factorial. Basically what it does is, say you see 5!, then you multiply all the numbers starting from 5 down to 1. Like,
5! = 5 * 4 * 3 * 2 * 1

Similarly, for 4!, when you count from 4 to 1 you hit 4, 3, 2, 1. So
4! = 4 * 3 * 2 * 1

Does that make sense?

Answer 8

would the answer be 25???

Answer 9

For which question?

Answer 10

4!=4*3*2*1

Answer 11

You're close. 4*3 is 12, so 4*3*2 = 12*2 = 24!

Answer 12

you wouldn't add the one???

Answer 13

This is multiplication. You do multiply the 1, but remember that 1 times any number is just that number. so 24*1 = 24

Answer 14

3!+4! would it be 12 *7???

Answer 15

3! = 3*2*1
4! = 4*3*2*1

So 3! + 4! = 3*2*1 + 4*3*2*1
= 6 + 24

Does that make sense?

Answer 16

so the answer is 30??

Answer 17

Yup

Answer 18

thankyou so much!!!:))))