This is a geometric sequence with n th term formula
=
where r is the common ratio and the first term
here = -
and
r = =
= 6
= -
or in terms of x
f(x) = -
Eight less than the product of a number and three (algebraic expression)
2 answers:
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Answer :
Given expression is
To make perfect square trinominal we use completing the square method
In completing the square method we add and subtract the half of square of coefficient of middle term
Here coefficient of middle term is -7
Half of -7 is
Square of is
=
So the expression becomes that gives perfect square trinomial
Hence , the value of 'c' is