Factorise: (3x-2y)² + 3(3x-24)-10
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Step-by-step explanation:
(3x-2y)²+3(3x-24)-10.
assuming 3x-2y=a
a²-3a-10
a²+5a-2a-10
a(a+5) -2(a+5)
(a+5) (a-2)
(3x-2y+5) (3x-2y-2)
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