Question

factorise by spliting the middle term :9(x-2y)²-4(x-2y)-13​

Answer 1

YOUR ANSWER BUDDY:-


LET x-2y =a
PUTTING THIS VALUE IN GIVEN EQUATION..
9a^2-4a -13
9a^2-(13-9)a -13
9a^2-13a+9a -13
a(9a-13)+1(9a-13)
(9a-13)(a+1)
(9(x-2y)-13) ((x-2y)+1)
(9x-2y-13)(x-2y+1)

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