Question

(x+√2) `` La patrat`` - 8

Answer 1

Sper ca te-am ajutat!

Answer 2

$(x+ \sqrt{2} )^2-8=x^2+2 \cdot x \cdot \sqrt{2} + \sqrt{2} ^2-8=x^2+2x \sqrt{2} +2-8= \\ =x^2+2x \sqrt{2} -6$