Answer:
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Answer:
x= 
Step-by-step explanation:
Given: 
This is a quadratic equation.

Taking common 3 from the equation given
⇒ 
dividing both side by 3
⇒
By using different factor, we can observe this trinomial can not be factored.
∴ solving it by completing the square.
⇒ 
adding 9 on both side
⇒ 
To get a perfect square number as coeffecient of x is 4, lets add both side by 4.
⇒
we know, 
∴ 
Taking Square root on both side, remember; √a²= a
⇒ 
opening parenthesis
⇒ 
subtracting both side by 2
∴ x= 
Answer:
This is a geometric progresion that begins with 1 and each term is 1/3 the preceeding term
Let Pn represent the nth term in the sequence
Then Pn = (1/3)^n-1
From this P14 = (1/3)^13 = 1/1594323
5. The sum of the first n terms of a GP beginning a with ratio r is given by
Sn = a* (r^n+1 - 1)/(r - 1)
With n = 10, a = 1 and r = 1/3, S10 = ((1/3)^11 - 1)/(1/3 - 1) = 1.500