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Formula
Expand the expression
Factorize the expression
$\left( 4+a \right) \left( 4-a \right)$
$- a ^ { 2 } + 16$
Organize polynomials
$\left ( \color{#FF6800}{ 4 } \color{#FF6800}{ + } \color{#FF6800}{ a } \right ) \left ( 4 - a \right )$
 Sort the polynomial expressions in descending order 
$\left ( \color{#FF6800}{ a } \color{#FF6800}{ + } \color{#FF6800}{ 4 } \right ) \left ( 4 - a \right )$
$\left ( a + 4 \right ) \left ( \color{#FF6800}{ 4 } \color{#FF6800}{ - } \color{#FF6800}{ a } \right )$
 Sort the polynomial expressions in descending order 
$\left ( a + 4 \right ) \left ( \color{#FF6800}{ - } \color{#FF6800}{ a } \color{#FF6800}{ + } \color{#FF6800}{ 4 } \right )$
$\left ( \color{#FF6800}{ a } \color{#FF6800}{ + } \color{#FF6800}{ 4 } \right ) \left ( \color{#FF6800}{ - } \color{#FF6800}{ a } \color{#FF6800}{ + } \color{#FF6800}{ 4 } \right )$
 Organize the expression with the distributive law 
$\color{#FF6800}{ - } \color{#FF6800}{ a } ^ { \color{#FF6800}{ 2 } } \color{#FF6800}{ + } \color{#FF6800}{ 16 }$
$- \left ( a - 4 \right ) \left ( a + 4 \right )$
Arrange the expression in the form of factorization..
$\left ( \color{#FF6800}{ 4 } \color{#FF6800}{ + } \color{#FF6800}{ a } \right ) \left ( 4 - a \right )$
 Organize the expression 
$\left ( \color{#FF6800}{ a } \color{#FF6800}{ + } \color{#FF6800}{ 4 } \right ) \left ( 4 - a \right )$
$\left ( a + 4 \right ) \left ( \color{#FF6800}{ 4 } \color{#FF6800}{ - } \color{#FF6800}{ a } \right )$
 Expand the expression 
$\left ( a + 4 \right ) \left ( \color{#FF6800}{ - } \color{#FF6800}{ a } \color{#FF6800}{ + } \color{#FF6800}{ 4 } \right )$
$\left ( a + 4 \right ) \left ( \color{#FF6800}{ - } \color{#FF6800}{ a } \color{#FF6800}{ + } \color{#FF6800}{ 4 } \right )$
 Bind the expressions with the common factor $- 1$
$\left ( a + 4 \right ) \times \left ( \color{#FF6800}{ - } \left ( \color{#FF6800}{ a } \color{#FF6800}{ - } \color{#FF6800}{ 4 } \right ) \right )$
$\left ( \color{#FF6800}{ a } \color{#FF6800}{ + } \color{#FF6800}{ 4 } \right ) \color{#FF6800}{ \times } \left ( \color{#FF6800}{ - } \left ( \color{#FF6800}{ a } \color{#FF6800}{ - } \color{#FF6800}{ 4 } \right ) \right )$
 Sort the factors 
$\color{#FF6800}{ - } \left ( \color{#FF6800}{ a } \color{#FF6800}{ - } \color{#FF6800}{ 4 } \right ) \left ( \color{#FF6800}{ a } \color{#FF6800}{ + } \color{#FF6800}{ 4 } \right )$
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