Question

If 4^y=7, then the value of 4^3y+2 is?

Answer 1

\[4^y=7\]
\[4^{3y}=(4^y)^3\]
So you'll get
\[\large 4^{3y}=7^3\]
Can you solve now?

Answer 2

343
Thank you:)

Answer 3

343 isn't the final answer, but it gets you there

Answer 4

343+2=345

Answer 5

is the +2 in the exponent when you say 4^3y+2

ie is the problem \[\Large 4^{3y+2}\]

or is it \[\Large 4^{3y}+2\]

Answer 6

if it's the second one, then you're correct

Answer 7

It's the second one 4^(3y)+2

Answer 8

ok then you got it, just making sure

Answer 9

Nice, thank you!