Question

Write the following using index notation

A) 2x2x2
B)3x3x3x3x3
C)4x4x4x5x5
D)9x7x9x9x7x9
Need help asap for my homework

Answer 1

Explanation:

`\underbrace{a* a* a*...* a}_(n)=a^n`

`A)\ \underbrace{2*2*2}_(3)=2^3\\\\B)\ \underbrace{3*3*3*3*3}_(5)=3^5\\\\C)\ \underbrace{4*4*4}_(3)*\underbrace{5*5}_(2)=4^3*5^2\\\\D)\ 9*7*9*9*7*9=\underbrace{9*9*9*9}_(4)*\underbrace{7*7}_(2)=9^4*7^2`

Answer 2

a=2^2

b=3^5

c=4^3x5^2

d=7^2x9^4

Explanation:

All you have to do is write the number that is already there and power it by number of times it is repeated.

If there are two different numbers in a question (like c and d) you should start with the smaller number and then follow with the larger on with a x/times symbol between them.