What is the 6th term in this geometric sequence? 5, -15, 45, -135
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It is given that x is 5 less than the quotient of y and 3.
And given value of y is 18 .
So quotient of y and 3 is
And 5 less than 6 =1
So we have y=18 and x=1
Given expression is
At x=1 and y=18, we will get
Given,
The expression is:
By using the middle term splitting method,
Hence, the factor is (x-(7+sqrt(33)/4)) (x+(7+sqrt(33)/4)).