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Formula
Multiply two numbers
Answer
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$-3 \times -7$
$21$
Multiply two numbers
$\color{#FF6800}{ - } 3 \times \left ( \color{#FF6800}{ - } 7 \right )$
$ $ Since negative numbers are multiplied by an even number, remove the (-) sign $ $
$3 \times 7$
$\color{#FF6800}{ 3 } \color{#FF6800}{ \times } \color{#FF6800}{ 7 }$
$ $ Multiply $ 3 $ and $ 7$
$\color{#FF6800}{ 21 }$
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