Question

factorise : x³ + 3x² + 3x - 63​

Answer 1

factorise : x³ + 3x² + 3x - 63

Solution

$\sf →x³ + 3x² + 3x - 63$

$\sf →x³+6x²-3x²+21x-18x-63$

$\sf →x³+6x²+21x-3x²-18x-63$

$\sf →x(x²+6x+21)-3(x²+6x+21)$

$\sf ~~~~ ~~(x²+6x+21)(x-3)$

Answer 2

Step-by-step explanation:

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