SOLUTION: 9x - __ + 4, what is the missing term to make it perfect square trinomial

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Question 1091359: 9x - __ + 4, what is the missing term to make it perfect square trinomial
Answer by ikleyn(52786) About Me  (Show Source):
You can put this solution on YOUR website!
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The missed term is %28-81%2F16%29%2Ax%5E2.


Indeed, 9x+-+%28%28-81%2F16%29%2Ax%5E2%29+%2B+4 = %2881%2F16%29x%5E2+%2B9x+%2B+4 = %28%289%2F4%29%2Ax%29%5E2+%2B+2%2A%28%289%2F4%29%2Ax%29%2A2+%2B+4 = %28%289%2F4%29x%2B2%29%5E2.

Solved.