Find the fourth term of the geometric sequence, given the first term and common ratio.
a1=8 and r=4

Step-by-step explanation:

hello :

the nth terme is :An = A1×r^(n-1)     ...A1=8 and r=4

An = 8×(4)^(n-1)

the  fourth term when : n= 4   so  A7 = 8×(4)^(4-1) =8×(4)^(3) = 512

312312

step-by-step explanation:

the correct answer option is (2x-3)(2x+3).

step-by-step explanation:

we are given the following expression and we are to factorize it:

we are to find such factors that when multiplied they give a result of 36 (9 x 4 = 36) and when added they give a result of 0.

the two such factors of 36 are negative six and postive six.

factorizing the given expression to get:

therefore, the correct factorization of is (2x-3)(2x+3).