Question

Factorise x^2-2root5x-15
Give step by step solution

Answer 1

Hey!!!....Here is ur answer

${x}^{2} - 2 \sqrt{5} x - 15 \\ \\ {x}^{2} - 3 \sqrt{5}x + \sqrt{5} x - 15 \\ \\ x(x - 3 \sqrt{5} ) + \sqrt{5} (x - 3 \sqrt{5} ) \\ \\ (x - 3 \sqrt{5} )(x + \sqrt{5} )$
Hope it will help you