Question

descompuneti in factori(x+√2)²-8

Answer 1

$(x+ \sqrt{2})^{2} - \sqrt{8}^{2}= \\ =(x+ \sqrt{2}+2 \sqrt{2})*(x+ \sqrt{2}-2 \sqrt{2})= \\ =(x+3 \sqrt{2})*(x- \sqrt{2}).$

/robertinni