factorise a²x²-11a²x+30a²-a-1=0
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Step-by-step explanation:
a²(x²-11x+30) -a-1
a²(x²-6x-5x+30) -a-1
a²(X(x-6)-5(x-6) -a-1
a² ( x-5)(x-6)-a-1
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