Question

factorise 6-9y-27y2 ​

Answer 1

${\small{\bold{\purple{\underline{Answer}}}}}$

6 - 9y - 27y^2

= 3(2 - 3y - 9y^2)

= 3(2 - 6y + 3y - 9y^2)

= 3( 2(1-3y) + 3y(1-3y) )

= 3(2+3y)(1-3y)