Answer:
The solution is
.
Step-by-step explanation:
The best way to solve this exponential equation is applying the logarithm of base 10 to each side of the equality.
It is also important to remember the following logarithm proprierty:

So






The solution is
.
1) -10x2+20x-1
2) -2(5x2+2x-1)
Answer:
I think it's C but I could be wrong I tried it on an online graph
Answer: 
<u>Combine Like Terms</u>
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Answer:
x>5
Step-by-step explanation:
1. First, you do distributive property with 4(x-7), which is 4x-28
2. Add 28 to both sides
3. divide 4 on each side
4. 20 divided by 4 is 5
6. x>5