Subtract
- $\frac { 7 x ^ { 2 } - 9 x + 8 } { x ^ { 2 } + 10 x + 21 } - \frac { 6 x ^ { 2 } - 9 x + 57 } { x ^ { 2 } + 10 x + 21 }$

question 98

Multiple Choice

Subtract.
- $\frac { 7 x ^ { 2 } - 9 x + 8 } { x ^ { 2 } + 10 x + 21 } - \frac { 6 x ^ { 2 } - 9 x + 57 } { x ^ { 2 } + 10 x + 21 }$

• A) \(\frac { x ^ { 2 } - 49 } { ( x + 3 ) ( x - 7 ) }\)
• B) \(\frac { 13 x ^ { 2 } - 18 x + 65 } { ( x + 3 ) ( x + 7 ) }\)
• C) \(\frac { x + 7 } { x + 3 }\)
• D) \(\frac { x - 7 } { x + 3 }\)

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Definitions:

Alkali Metals

A group of elements in the periodic table known for their high reactivity and presence of a single electron in their outermost shell.

Inner Transition Metals

Elements that include the lanthanides and actinides, found in the f-block of the periodic table, known for their complex electron configurations.

Alkaline Earth Metals

Alkaline earth metals are a group of elements in the second column of the periodic table, characterized by their metallic properties and two valence electrons.

Transition Metals

Elements found in the middle of the periodic table that are characterized by their ability to form compounds with variable oxidation states and colored compounds.