Question

sovle it................

Answer 1

p(x)=x²+2√2x-6
      =x²+3√2x-√2x-6
      =x(x+3√2)-√2(x+3√2)
      =(x+3√2)(x-√2)
p(x)=0
    ∴     (x+3√2)(x-√2)=0
        x=-3√2  ,  x=+√2