What is hydrologyPlz don't spam.Spam answers will be reported
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Answer:
<h3>Defination of Hydrology :- </h3>- Hydrology is the scientific study of the movement, distribution, and management of water on Earth and other planets, including the water cycle, water resources, and environmental watershed sustainability.
- A practitioner of hydrology is called a hydrologist.
Step-by-step explanation:
<h3>Hope this helps you bhaiya ✌️</h3><h2>Carry on learning !! </h2><h3>Best of luck for ur exam ,, Hope u will do best .</h3>
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The simplified form of the given expression is
.
The steps to simplify a fractional expression are:
- Factorize the expressions both in the numerator and the denominator using different methods
- Remove the common terms in the numerator and denominator
- Thus, the simplified expression will be obtained.
The given expression is
Factorizing the numerator:
x² - 4x - 21 = x² - 7x + 3x - 21
= x(x - 7) + 3(x - 7)
= (x - 7)(x + 3)
Then,
=
common factor (x + 3) is canceled out from both the numerator and the denominator
So,
=
Therefore, the simplified expression is .
Learn more about simplifying an expression here:
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