Perform the Operation and Write the Result in Standard Form $\left( 2 x ^ { 2 } + 6 \right) - \left( x ^ { 2 } - 5 x + 1 \right)$

Multiple Choice

Perform the operation and write the result in standard form. $\left( 2 x ^ { 2 } + 6 \right) - \left( x ^ { 2 } - 5 x + 1 \right)$

A) $x ^ { 2 } - 5 x + 7$
B) $x ^ { 2 } + 5 x + 5$
C) $x ^ { 4 } + 5 x + 5$
D) $x ^ { 4 } - 5 x + 7$
E) $3 x ^ { 4 } - 5 x + 7$