Question

find the answer by splitting the middle term - x^2 + 3√3x - 30

Answer 1

$x^{2} +3 \sqrt{3}x-30\\ \\= x^{2} +5 \sqrt{3}x-2 \sqrt{3}x-30\\ \\= x(x +5 \sqrt{3})-2 \sqrt{3}(x+5 \sqrt{3})\\ \\= (x +5 \sqrt{3})(x -2 \sqrt{3})$