x2-9y का गुणखण्ड होगा :
(अ) (x+3y) (x+3y)
(ब) (x+3y) (x-3y)
(स) (x-3y) (x-3y)
(द) इनमें से कोई नहीं।
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Step-by-step explanation:
if x^2-9y^2 is there then it will be (x+3y)(x-3y) and if it is x^2-9y then it will be none of the above
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