4x2 + 52x - 3.
By splitting the middle term
4x2 + 52x - 3 = 0
4x2 + (6√ 2x - √2 x) - 3 = 0
4x2 + (6√ 2x - √2 x) - 3 = 0
2√2 x (√2x + 3) - (√2x + 3) = 0
(√2x + 3)(2√2 - 1) = 0
⇒ x = - 
Verification:
Sum of the zeroes = - (coefficient of x) ÷ coefficient of x2
α + β = - b/a
(
) + (
) = - 
= 
Product of the zeroes = constant term ÷ coefficient of x2
α β = c/a
= 
- 3/4 = - 3/4
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