Question

(2×√2+1)×(3×√2−4)va rog frumooossss!!!!!

Answer 1

$(2 \times \sqrt{2} + 1) \times (3 \times \sqrt{2} - 4)$

$= (2 \sqrt{2} + 1) \times (3 \sqrt{2} - 4)$

$= 6 \sqrt{4} - 8 \sqrt{2} + 3 \sqrt{2} - 4$

$= 6 \times 2 - 8 \sqrt{2} + 3 \sqrt{2} - 4$

$= 12 - 5 \sqrt{3} - 4$

$= - 5 \sqrt{3} + 8$