find land m if the given polynomial is a perfect square.9x+12x​3 -26x+lx+m

Dear Student,

Please find below the solution to the asked query:

Here we can't get equation 9 x 4 + 12 x 3 - 26 x 2 + l x + m as a perfect square . 

As we know square of any trinomial term can't give only ( x 2 ) term as negative ( As given - 26 x 2  )

So,

Kindly recheck your query and get back to us so that we could help you precisely  .

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