Question

$2 {x}^{2} - 2 \sqrt{2} x - 3$

Answer 1

2x^2-2√2x-3
2x^2-√8x-3
√8+or-√8-4×2×-3÷4
√8+OR-√32÷4

Answer 2

2x²-2√2x-3
By splitting the middle term.
2x²-3√2x+√2x-3
2x²+√2x- 3√2x -3
√2x(√2x+1) -3(√2x+1)
(√2x-3)(√2x+1)
so
value of x
x=3/√2 & x=-1/√2