After solving 
we get value of x: 
Step-by-step explanation:
We need to solve the equation and find value of x:
Solving:
Using the rule: if 
Since our base is equal i.e 4 so,
So, After solving we get value of x:
keywords: Solving Exponents
Learn more about Solving Exponents at:
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3x²–243=0 —> 3 (x²–81) = 0 —>
x²–81=0 —> (x-9)(x+9)=0
x-9=0 —> x=9
x+9=0 —> x=–9
I hope I helped you^_^
Answer:
47
Step-by-step explanation:
Answer:
3. All you did was switch the numbers, so it will still equal the same :)
4. 8a and the other 8a cancel each other out, so since 8 has no variables, it ends up by itself.
