Question

factorise using identities

ii) 49x3 – 36xy^2

Answer 1

Step-by-step explanation:

$49 {x}^{3} - 36x {y}^{2}$

$= x(49 {x}^{2} - 36 {y}^{2} )$

$= x( {7x)}^{2} - ( {6y)}^{2}$

$= x(7x + 6y)(7x - 6y)$