jonzion1122
3^X+3  9^2X1=0
what are the steps to finding the solution?



This Question is Closed

myininaya
Best Response
You've already chosen the best response.
1
\[3^x+39^{2x}1=0?\]

myininaya
Best Response
You've already chosen the best response.
1
Or!
Do you mean
\[3^{x+3}9^{2x1}=0\]

jonzion1122
Best Response
You've already chosen the best response.
0
second one

myininaya
Best Response
You've already chosen the best response.
1
Ok did you add to both sides \[9^{2x+1}\]

myininaya
Best Response
You've already chosen the best response.
1
\[3^{x+2}=9^{2x+1}\]

myininaya
Best Response
You've already chosen the best response.
1
oops  not +
oh well

myininaya
Best Response
You've already chosen the best response.
1
Do you know how to answer the following
What number satisfies the equation
\[9=3^{?}\]

myininaya
Best Response
You've already chosen the best response.
1
Ok great.
So we have
\[3^{x+2}=(3^{2})^{(2x1)}\]
since 3^2=9 :)

myininaya
Best Response
You've already chosen the best response.
1
So we have the same base on both sides
All you need to do is set the exponents equal and solve for x

myininaya
Best Response
You've already chosen the best response.
1
\[x+2=2(2x1)\]

myininaya
Best Response
You've already chosen the best response.
1
Let me know if you have further questions :)

jonzion1122
Best Response
You've already chosen the best response.
0
firstly its x+3 but where did you get the 2 in "2"(2x1)

myininaya
Best Response
You've already chosen the best response.
1
\[9=3^2 \]
\[3^{x+3}=9^{2x1}\]
\[3^{x+2}=(3^2)^{(2x1)}\]

jonzion1122
Best Response
You've already chosen the best response.
0
how does 3^2(^2x1) = 2(2x1)

myininaya
Best Response
You've already chosen the best response.
1
No....we have x+2=2(2x1)
not what you wrote