Question

Pls solve question number 27

Answer 1

Answer:

$x {}^{2} { - (3 \sqrt{5} } - 2 \sqrt{5} )x - 30 \\ x { }^{2} - 3 \sqrt{5}x plus2 \sqrt{5}x - 30 \\ x(x - 3 \sqrt{5} )plus2 \sqrt{5} (x - 3 \sqrt{5} ) \\ (x plus2 \sqrt{5} )(x - 3 \sqrt{5} ) \\ x = - 2 \sqrt{5} or \\ x = 3 \sqrt{5} )$