Question

middle term split of x2-2.3rootx-9​

Answer 1

Step-by-step explanation:

${x}^{2} - 2 \sqrt{3}x - 9 \\ = {x}^{2} + \sqrt{3} x - 3 \sqrt{3} x - 9 \\ = x(x + \sqrt{3} ) - 3 \sqrt{3} (x + \sqrt{3} ) \\ = (x + \sqrt{3} )(x - 3 \sqrt{3} ) \\ x + \sqrt{3} = 0 \: \: \: \: \: \: x - 3 \sqrt{3} = 0 \\ x = - \sqrt{3} \: \: \: \: \: \: \: \: \: \: \: x = 3 \sqrt{3}$

hope you get your answer