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Formula
Factorize the expression
Answer
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$ax ^{ 2 } -9a$
$a \left ( x - 3 \right ) \left ( x + 3 \right )$
Arrange the expression in the form of factorization..
$\color{#FF6800}{ a } \color{#FF6800}{ x } ^ { \color{#FF6800}{ 2 } } \color{#FF6800}{ - } \color{#FF6800}{ 9 } \color{#FF6800}{ a }$
$ $ Factorize to use the polynomial formula of sum and difference $ $
$\color{#FF6800}{ a } \left ( \color{#FF6800}{ x } \color{#FF6800}{ + } \color{#FF6800}{ 3 } \right ) \left ( \color{#FF6800}{ x } \color{#FF6800}{ - } \color{#FF6800}{ 3 } \right )$
$\color{#FF6800}{ a } \left ( \color{#FF6800}{ x } \color{#FF6800}{ + } \color{#FF6800}{ 3 } \right ) \left ( \color{#FF6800}{ x } \color{#FF6800}{ - } \color{#FF6800}{ 3 } \right )$
$ $ Sort the factors $ $
$\color{#FF6800}{ a } \left ( \color{#FF6800}{ x } \color{#FF6800}{ - } \color{#FF6800}{ 3 } \right ) \left ( \color{#FF6800}{ x } \color{#FF6800}{ + } \color{#FF6800}{ 3 } \right )$
Solution search results
search-thumbnail-$2$ $ax^{2}-9a$ $=a$ $\left(25\times 2-9\right)$
7th-9th grade
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