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Types of Expressions Based on the Number of Terms

Solve: x3-33...

Question

Solve:
$x^{3} - 3^{3} .$

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Solution

$x^{3} - 3^{3}$
applying
$a^{3} - b^{3} = (a - b) (a^{2} + b^{2} + a b)$ $
$x^{3} - 3^{3} = (x - 3) (x^{2} + 3^{2} + 3 x)$
$= (x - 3) (x + 3 x + a)$

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Types of Expressions Based on the Number of Terms

Standard VII Mathematics

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