1.

Factorise : `6xy-4y+6-9x.`

Answer» `6xy - 4y + 6 - 9x`
`=2y( 3x-2) + 3(2-3x) `
`= 2y[3x-2]+3[-3x+2]`
`= 2y[3x-2] - 3[3x-2]`
`= [3x-2][2y-3]`
answer


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