X^2 + X - 12 = 0
(X + 4)(X - 3) = 0
X = -4 and X = 3.
Using it's concept, it is found that the domain for the expressions is, respectively, given by:

<h3>What is the domain of a function?</h3>
It is the <u>set that contains all possible input values</u>.
In a fraction, the denominator cannot be zero, hence:
- The domain of the first two expressions is of
.
- The domain of the last expression is of
.
The third expression can be simplified, as:
(x + 5)/(x + 5) = 1.
The same is true for the fourth, as:
x²/x = 1.
Neither has any restriction, hence their domain is all real numbers, represented by
.
More can be learned about the domain of a function at brainly.com/question/25897115
300 text messages. Because there’s a 30 dollar differences. So you’ll multiple 30x10=300
How you would solve this is move the letter so that it would say h=a/b so that means the answer is 330/22= 15 the answer is 15