Question

1. Factorise :
(1) 81x3 – 375y3
$3$
​

Answer 1

Answer:

$\sf{9\left(27x-125y\right)}$

Step-by-step explanation:

$\sf{81x\cdot \:3-375y\cdot \:3}$

$\sf{=27\cdot \:9x+125\cdot \:9y}$

$\sf{=9\left(27x-125y\right)}$