The is a group of interrelated structures involved in people's experiences of emotion, motivation, and memory.

The limbic system is a interrelated structures group involved in people's emotion, memory, and motivation experiences.

Limbic system is located on two sides of thalamus and its function is to support bodily functions such as motivation, olfaction, emotions, behavior and etc. It processes the lower order of emotions.  

It is also made up of different parts of brains that include the hypothalamus, hippocampus and several others. The limbic system provides a connection between the parts of brain that deal with the high or low function. It is located within the cerebellum and above brain stem.

x = 7

step-by-step explanation:

equating the expression for area to the given area

2x² - 7x - 4 = 45 ( subtract 45 from both sides )

2x² - 7x - 49 = 0 ← in standard form

to factor consider the factors of the product of the coefficient of the x² term and the constant term which sum to give the coefficient of the x- term

product = 2 × - 49 = - 98 and sum = - 7

the factors are - 14 and + 7

use these factors to split the middle term

2x² - 14x + 7x - 49 = 0 ( factor the first/second and third/fourth terms )

2x(x - 7) + 7(x - 7) = 0 ← factor out (x - 7)

(x - 7)(2x + 7) = 0

equate each factor to zero and solve for x

x - 7 = 0 ⇒ x = 7

2x + 7 = 0 ⇒ 2x = - 7 ⇒ x = -

thus the positive value for x is x = 7