(x+5)(x-5)
= x^2 - 5x + 5x - 25
= x^2 - 25
(5x+3)(5x-3)
= 25x^2 - 15x + 15x - 9
= 25x^2 - 9
do you see the pattern? both the coefficient on x and constant multiply together to make a perfect square and the middle term, also known as "b" term cancels out leaving a binomial
19
28
30
42.
Hope this helps
Answer:
see below
Step-by-step explanation:
Option 1: the two solution sets overlap at <em>x=1</em>.
Option 2: the two solution sets do not overlap; no solution.
Option 3: together, the two set describe <em>all real numbers</em>.
Step-by-step explanation:
- A
- B
...................
Given:
The geometric sequence is:
To find:
The 9th term of the given geometric sequence.
Solution:
We have,
Here, the first term is:
The common ratio is:
The nth term of a geometric sequence is:
Where, a is the first term and r is the common ratio.
Substitute to find the 9th term.
Therefore, the 9th term of the given geometric sequence is 5103.