2root2x^2+9x+5root2
Let p(x) = 2√2x2 + 9x + 5√2
= 2√2x2 + 4x + 5x + 5√2
= 2√2x2 + 2√2√2x + 5x + 5√2
= 2√2x(x + √2) + 5(x + √2)
= (x + √2) (2√2x + 5)
= 2√2x2 + 4x + 5x + 5√2
= 2√2x2 + 2√2√2x + 5x + 5√2
= 2√2x(x + √2) + 5(x + √2)
= (x + √2) (2√2x + 5)