Question
Factorise $: 1029 - 3x^3$
✓
Answer
$1029 - 3x^3$
$= 3( 343 - x^3)$
$= 3( 7^3- x^3)$
$= 3( 7 - x )( 7^2+ 7x + x^2)$
$= 3( 7 - x )( 49 + 7x + x^2)$
$= 3( 343 - x^3)$
$= 3( 7^3- x^3)$
$= 3( 7 - x )( 7^2+ 7x + x^2)$
$= 3( 7 - x )( 49 + 7x + x^2)$
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