cooldudeman
Badges: 17
Rep:
?
#1
Report Thread starter 8 years ago
#1
how do i turn the 9 into a 3?? here is the question:

3^10 x 9^15 in the form of 3^n

also, very quick, would
4^3 x 4^5 = 16^8 or 4^8??
0
reply
Van Grall
Badges: 0
Rep:
?
#2
Report 8 years ago
#2
9 = 3^2
therefore, 3^(15*2)
10 + 30 = 40

3 ^ 40

and 4^8
0
reply
username167718
Badges: 2
Rep:
?
#3
Report 8 years ago
#3
(Original post by cooldudeman)
how do i turn the 9 into a 3?? here is the question:

3^10 x 9^15 in the form of 3^n

also, very quick, would
4^3 x 4^5 = 16^8 or 4^8??
3^{10} \times 9^{15} = 3^{10} \times (3^2)^{15} = 3^{10} \times 3^{30} = 3^{40}

And in general,
x^a \times x^b = x^{a+b}

-- So 4^3 x 4^5 = 4^8
0
reply
X

Quick Reply

Attached files
Write a reply...
Reply
new posts
Back
to top
Latest
My Feed

See more of what you like on
The Student Room

You can personalise what you see on TSR. Tell us a little about yourself to get started.

Personalise

University open days

  • Cardiff Metropolitan University
    Undergraduate Open Day - Llandaff Campus Undergraduate
    Sat, 19 Oct '19
  • Coventry University
    Undergraduate Open Day Undergraduate
    Sat, 19 Oct '19
  • University of Birmingham
    Undergraduate Open Day Undergraduate
    Sat, 19 Oct '19

Why wouldn't you turn to teachers if you were being bullied?

They might tell my parents (11)
6.04%
They might tell the bully (18)
9.89%
I don't think they'd understand (32)
17.58%
It might lead to more bullying (69)
37.91%
There's nothing they could do (52)
28.57%

Watched Threads

View All