Question

Can someone please check if this is right? i would appreciate it!!

Answer 1

B,C,E

Step-by-step explanation

The given exponentiial expression is

`{7}^(8) * 7 = {7}^(8 + 1) = {7}^(9)`

The expression that simplify to

`{7}^(9)`

are all equivalent to the above expression.

A

`{7}^(3) * {7}^(3) = {7}^(3 + 3) = {7}^(6)`

B

`\frac{ {7}^(18) }{ {7}^(9) } = {7}^(18 - 9) = {7}^(9)`

C

`( {7}^(3) )^(3) = {7}^(3 * 3) = {7}^(9)`

D

`{7}^(4) + {7}^(5) = {7}^(4) (1 + 7) = 8( {7}^(4) )`

E.

`{7}^(4) * {7}^(5) = {7}^(4 + 5) = {7}^(9)`

Therefore options B, C and E are all equivalent to the given expression.