Factorise the following solve 23 and 25
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23) (x+3)[(x+3)²-2(x+3)+3]
(x+3)[x²+9+6x-2x-6+3]
(x+3)(x²+4x+6)
25) 25(x-y)²-15x(x-y)-(x-y)
(x-y)[25(x-y)-15x-1]
(x-y)[25x-25y-15x-1]
(x-y)[-25y+10x-1]
hope this helps
(x+3)[x²+9+6x-2x-6+3]
(x+3)(x²+4x+6)
25) 25(x-y)²-15x(x-y)-(x-y)
(x-y)[25(x-y)-15x-1]
(x-y)[25x-25y-15x-1]
(x-y)[-25y+10x-1]
hope this helps
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