Question

4x^2+ax+9=(2x+3)^2, find a. (urgent pls help)

Answer 1

Answer:

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Answer 2

Solution :-

$4 {x}^{2} + ax + 9 = {(2x + 3)}^{2} \\ R.H.S= {(2x + 3)}^{2} \\ using \: {(p+ q)}^{2} = {p}^{2} + 2pq + {q}^{2} \\ = 4 {x}^{2} + <strong>12</strong>x + 9 \\ a = 12$

Thanks for the question bro